Well said, OP! I think that the criticism/"hate" is definitely helpful, so long as it's done in a constructive, rational manner.
DA2 isn't a great game by any stretch of the imagination...but it's also not BAD. It just could have done with a year or two more in the development phase. I've played worse. It had some strengths--I found the method of storytelling to be very engaging, and LOVE Varric and Merrill. I thought that the idea of streamlining on the whole was not a terrible thing, but they made the mistake of overdoing it. I didn't even mind the tighter focus, world-wise. Attempting to appeal to a wider audience isn't a bad idea. It's just business. However, attempting to appeal to an audience that isn't even close to your original audience is folly, and they should have known better than to change the very things that people vocally loved the original for (tactics, a whole cast of very strong characters, the choices made actually having an impact on the story and character relationships, instead of just an illusion thereof...I could go on, but you all know what I'm talking about).
Despite the above, I'm really more put off by the obvious rushing in the design. I understand the need to recycle some elements, I guess, but my first thought upon stepping into a new dungeon area shouldn't be "oh hey, I've been here before..." That's just lazy.
Also, I couldn't tell--is my XBox just full of fail, or did anyone else have some problems with being thrown back into the same dialog sequence a second time? Or cutscenes looking a little choppy: characters flickering/jumping on the screen?