Honestly most of the game's technical problems come down to two things:
Poor optimization with a bad engine.
Denuvo.
Hell CRYENGINE 3 would have been a better choice for this game. And Denuvo? That DRM (excuse me, anti-tamper system) IMO is the cause of most of the stability problems and unusual load on CPU/RAM/HDD or SSD. Especially the latter.
Denuvo has been cracked. Regardless of whether or not there's a working crack floating around for everyone to download, the DRM has been defeated and it's now pointless. It's now there to punish the legitimate user like just about every other DRM in existence.
Yup. The decision on the engine could be a haphazard call or a calculated one. I don't know if Cryengine would have been better though. When I try to recall the games made with CryEngine the first games I think about are FPSs. Farcry, Crysis, Lichdom. There may be examples that fit into scheme of Dragon Age but I don't recall one. From their perspective, EA, they want to push Frostbite because it's super cheap, and the more applications it has the better. Slog out the growing pains and have an engine they could use for a decade of future development. Unfortunately it makes DA:I sound like an experiment. As CryEngine and Unreal both switched to a subscription model with the latter taking a percentage of gross sales of any product developed using it commercially. Maybe Frostbite is being developed along a similar thought stream. "That was the goal all along", he yelled before ducking into the fallout shelter and losing his tinfoil hat.
DRM is a cancer. Generally benign but almost all feature some dubious amount of malignancy.
If this really was affecting as many people as you'd believe, it would have been done already. This existence of this thread does nothing to prevent people from communicating in other areas of the Internet.
First part I agree wholeheartedly. Nothing is preventing anyone from leaving this thread to spread the news.
The fact that there isn't a huge outcry is most likely due to the following: when it comes to actual PC bugs, they might be isolated to specific users and when it comes to the PC especially, there's always some people with the hardware/software combo that prevents them from playing. It probably doesn't affect the majority of players, so it's pretty much up to tech support to do their best to help.
I think it is more indicative of not enough people caring and just accepting. "Yeah, that's odd... What else is on TV?" People just accept it for it is and move on. And I don't think the majority matters to anyone here. We're selfish beings with limited oversight. I want what I want. I won't hide that fact. Neither will I cow to the masses just because they are the masses.
And when it comes to the PC UI or outright design decisions/compromises--I guess most people feel it's okay. For instance, I felt a few things were awkward but I adapted and it didn't prevent my interest in the game one bit. I think most PC users are like me--it's not a game-breaking deal to us.
You probably are right sadly. Kind of ties into what I said above. I appreciate that you once felt like the UI was jarring and not horrible as I do. It really has done a number on my opinion. Certainly not unplayable. Agree. It's just obtuse to an extent that should not exist on the PC. For that reason I do chagrin.
I did see people complaining about a few bugs on Twitter/Facebook, and those patches got processed--mostly the voice change bug, etc.
If this was truly a big deal to most players, there'd be a lot more activity and it wouldn't be limited to this forum, and there would be a stink on the Internet about it. At some point, people have to accept that their opinions are the minority and not representative of the majority.
As said before above I'll accept that my opinion is the minority. Doesn't change my position on the game. And I'm hoping that with certain things you feel strongly about you won't let the majority determine how you feel about it. *rabble rabble rabble*

Man on left: This damn thing took me days to make after chasing rams down for their fur in melee mode.
Man on right: I hear that.