I agree with a lot of your points and find the ones I don't agree with well argumented, but
I think these were mostly fixed for 3, though replaced with side quests reminiscent of DA2 on a bad day (hand in the corpse for 3 gold, why not) and, well, an ending that can, even after all the patchwork, best be described as sticking up a middle finger to anyone who actually cared about the games (so sue me, I cared about them), or "questionable", if you will.