1. Yes they were. Sorry, but the Anatan was ready to sweep southern thedas. You can't argue that.
2. That does not matter. Iron bull nature is dead if you let the chargers die. You're not getting the fact that you are not letting him have anything important beyond the qun. You're make him understand that only the qun is importat and his role over his friend and family, he's going o fallow suit. Sorry, but you deluding you're self if you think he was not going to turn.
1. I can argue it, unless there is proof. Got any? Were the warships in the deep water? Was the Arishok positioned in Amaranthine ready to take the Bannorn? Was Tallis lying in wait to cut out Choir Boy's singing voice? Or did Vidasala just have a bunch of Vidathari following her orders to put some barrels in different places?
2. No, Iron Bull's nature is one of observation and cold, logical thinking. His intellect doesn't (or shouldn't) go out the window just because he believes in the Qun. He outright says that the Vidasala would never let a serebaas within a thousand feet of lyrium. Yet, she was feeding them lyrium. This is a direct violation of the Qun. He should have known that her actions would not be accepted by the Antaam, especially if they were unilateral, but even if they were orders.
Wrong. The Chargers can live, and he will still side with Vidasala if you did not complete Demands of the Qun. So the Chargers have nothing to do with this discussion. Besides, this isn't about the Qun either. It's about observing the facts that are right in front of your face.
I personally knew that he was going to fight me (as did my Inquisitor). I personally wanted him to fight me (though my Inquisitor did not). In fact, it was one of my requests after seeing the trailer. I like the fact that he fought me because I personally wanted to kill him. My Hero also has his inevitable battle with his kadan, the Arishok in the near future as well, and he will triumph in that battle just like my Inquisitor did in his. But their case will be a proper one, where the Qunari are officially at war with the south again. But the Inquisitor and Hissrad's case? Terrible. I'm fine with Hissrad choosing to fight my Inquisition. What I don't like are the circumstances under which he made that choice. I believe that Hissrad's character, in logical observation of my Inquisitor's character and actions (siding with templars, restoring the circles, protecting people from demons, not drinking from the Well, not being involved with the current situation with the elven spirits), would have chosen to ignore the Qun-violating Vidasala and side with the people who always win.
It would make sense for him. His role was to be a spy in the Inquisition. Siding with the Inquisitor in this fight would only gain more trust, thus securing his place there. It would also be a good backup plan for the Qunari when Vidasala's plans fall through.