The HoF decides who to put on the Ferelden throne after overthrowing a regent in a duel, and leaves a multi-racial army against the Blight, afterwhich they lead another army on behalf of the Grey Wardens. In some cases, they may become Prince/Princess Consort of Ferelden - and stay that way.
Hawke reclaims their estate, and has connections pretty much everywhere as a result of doing everybody's dirty work. Hawke even has connections to the Warden. Hawke may serve as Vicount of Kirkwall for a number of years, but are eventually squeezed out. So no potential army with them, but they do have connects and they do have reputations.
These are the two people Cassandra was looking for before the Inquisition got saddled with the Inquisitor. She was looking for them for a reason.
If what he said was indeed true and the Evanuris would destroy the world if he didn't create the Veil, then yes, his hand was forced.
The fact that he makes bad decisions along the way only adds to the tragedy that is already there - the saddest thing of it all is that he sacrifices everything he has or loves in order to help people and he still ends up hurting them or ending with nothing or being dragged down. That's the tragedy of most Thedas' heroes, as I've already pointed out.
He also says he needs to tear down the Veil and destroy how the world works, ending Humanity, to restore his people to their former glory.
He still chooses this path despite acknowledging that there are bright spots in the world they currently reside in.
Excuse me if I don't exactly believe that "his hand was forced."
Not expecting an all-evil Tevinter Magister to be able to use them as sacks of meat to posses them was caused by their secrecy - because nobody, even of higher rank, knew anything of the danger. In fact, many Wardens don't seem to know or regard matters of safety or dangers of magic they dont' seem to entirely understand, which is EXACTLY the reason why Sophia Dryden's rebellion ended the way it ended and why they've almost created Corypheus a demon army.
Okay. So in revealing their secrets about swallowing darkspawn blood in a blood magic ritual, they receive scorn from the Chantry for using Blood Magic, Templar attention that would make it harder for them to do what they need to do to get things done… all for maybe one day discovering a piece of information that in not only unknown to everybody, but completely contradicts world knowledge up until that point.
They were the first to find out about Corypheus anyway, long before the Fifth Blight. By then they already had a lot of wardens swarming around. They didn't exactly receive any warnings long ago around about a potential old Tevinter mage popping up, and why would they? As far as the world knew, all the Tevinter mages were cast down as darkspawn. It was more reasonable to think them dead, cut down by the first Grey Wardens.
Also, considering how Ferelden’s Circle of Magi’s Rebellion ended exactly the same way as Sophia Dryden’s rebellion (except maybe with more demons), I can hardly chalk up anything to ‘them not knowing what they’re doing.' Sure, maybe the underlings didn't. But the leaders totally knew what they were doing, took the gamble, and got screwed.
Shechinah has already explained just how wrong it is to interpret Andraste's betrayal as merely "my husband wanted me to stay in the kitchen".
I was joking.
Why would anybody say something like that seriously?
Yes, thy exist... while the cause of their existence has ceased existing. Don't you see a problem here?
Orlais and Ferelden are now afraid that Inquisition - being the one force left standing and in fact growing in power - will now turn on them... even if not in terms of conquest, then in trying to change either the status quo or the already established power landscape in the South (after all, as you yourself pointed out, they've managed to put people on thrones and rescued entire organizations - what stops them from going further with things?).
What's more, they know that Inquisition CAN do that, since all the other structures have been weakened, which would mean that they could make a power grab even WITHOUT a ridiculous scheme to blow everyone up.
Even more so, the leader of Inquisition is - by general population - viewed as a divinely-appointed savior, which means that even if they don't have country leaders on their side, they'd still have a lot of people's support behind them.
Taking that into consideration your asking of "what's Orlais and Ferelden's problem?" strikes me as naive.
The alternatives are to entrust the Inquisition to a genocidal organization that has already destroyed an entire nation in the past over a disagreement about religion, or to disband it's forces, forcing everybody that ever worked for them to find new places of employment and causing a fairly massive migration that may result in new bands of mercenaries, thieves, etc. that will plague the countryside, not because people are assholes, but because people are hungry and want to live.
The Inquisition served as a hub for displaced people who lost homes, villages, etc. due to the ongoing conflict. That's part of why it grew bigger than expected. I didn't see Ferelden or Orlais much caring about those people at all, despite them being from Ferelden or Orlais.
And if Ferelden and Orlais are terrified of a military presence on their borders, why are they so eager to give that military force to an organization that has outposts throughout their entire respective countries?
Frankly, I'm very inclined to ask what their problem is, because their provided solutions don't make much sense in the context of what they're saying.
The fact they they're indeed paranoid and fumbling about doesn't change the fact that the question "what is going to happen with Inquisition next" was completely legit: you don't leave a powerful organization with a private army and spy network rivaling that of many countries at your doorstep without wondering what they're up to, nor anybody expects that they'd just be sitting in Skyhold and twiddling their thumbs. However the summit went or would go without the Qunari scheme and reveal of Fen'Harel, some things had to be resolved.
But they didn’t even ask what the Inquisition was going to do next. Nor did they care, for that matter. You were given two options, and they weren’t going to compromise on any “third” option. Nor was the PC prompted to establish what they meant by “we’re not going anywhere.”
It didn’t really matter what plans or goals we had. I had thought of actual reasons for why I wanted the Inquisition to stay in place, but never got a chance to voice them. We were going to be cut down one way or the other.
They didn't care about the Inquisition or what it did for them. They didn't care about the quality of the Inquisition's character or their intentions moving forward. They didn't care that there was another threat looming over the horizon. They didn't even care what happened to the Inquisition itself, it just needed to be dead or put on a leash.
You know what I did when I had to make a decision regarding a particular faction? Like whether to seek the Templars or ally/conscript them? Or who to support when it came down to ruling Orlais? Or who to support as the next Divine?
I talked to people. Didn't put forward my agenda or shove **** down their throat, and let them speak out their thoughts. Sought advice. Met with the candidates, listened to what they had to say. Made a cohesive decision after deliberating for a while. Dealt with the fallout. At the end of the day, I could sit anyone down and explain to them why I thought the way I did, and why I didn't choose them. They could disagree. That was the end of it.
The Exalted Council was nothing but paranoid assholes casting shade where it didn't belong, one side grabbing at me trying to make me their slave while the other wished I was never born. I had to listen to them ****** without any opportunity for input. They ran a kangaroo court, casted major disrespect for the men and women who risked their lives saving them time and time again, and tried to say that I was capable of doing **** I'd never done before, all while other **** was going down that I didn't have time to explain.
So excuse me if I don't take any of their concerns all that seriously and treat it as 'out of left field' bullshit. They can bark all they want about what I'm capable of, but that alone isn't a good excuse to treat the organization that saved their lives as a threat to their countries. That's not even reasonable. And I can understand their concerns, but they don't allow for any conversations on the matter. It's open and shut, 'do as I say' bullshit.
And the kicker here is that you can't even be evil and justify any of their concerns. You literally can't be the worst news, 'do not trust this *******' guy that everybody wants to slam down. The worst you can do is be morally grey. Like, what, making a personal deal with a demon and letting them go free is probably the worst you can do? So not only would the Inquisitor not do any of those things that they're being paranoid about, but they are mechanically incapable of doing so anyway.
Like... No. Sorry. There's literally nothing to warrant any of the hostility. The Exalted Council can bite me.