1. If Bioware was truly targeting a teen audience, the game wouldn't be rated M. It would be rated T. Honestly I think anyone that says that Dragon Age is getting too much like Twilight is because they sense that the series is targeted more at a female fan base than most games. Too many people think anything targeted at the female half is inherently horrible. Twilight falls under horrible fantasy targeted at females. I personally do not like Twilight because it is generally bad, horribly written and with shallow characters. And though I do think Anders was very over dramatic and Fenris very broody and they sparkled/glowed to an extent and there are a few questionable instances in their romances, they're not standing in Hawke's window at night watching her sleep and will step aside if Hawke dumps them.
I think Dragon Age leans more towards Game of Thrones, with an equal amount of pissing off fans but it's too terrified to show full on boobies.
2. I'm one of those people that loved DA2, hated DA:O, and think you shouldn't have complete control of everything. Especially what happens in the main plot. At times there needs to be things that are beyond player control, otherwise the a story gets dull.
Likewise, I loved KOTOR2, didn't like KOTOR1 so much. KOTOR1 felt like a typical star wars story besides that big old twist, and KOTOR2 was atypical Star Wars story that took a critical eye of Star Wars as well as Bioware tropes. TOR, was pretty meh for me in the end, but mostly because I am really not an MMO person. The supporting characters in TOR suffer the most because of the MMO, because for a lot of them you miss out of their development because you can't join them on their side quests. Frankly, I'd rather Obsidian do KOTOR3 instead of Bioware.
I really didn't like ME3's story, I felt it relied too much on shock value than actually story and tried to do too much bad symbolism because someone felt they were a brilliant, creative artist. ME3 to me, actually did take away way too much control from the player. I mean, they took out the middle option, what the hell? You could only respond to things from two extremes. ME1 gave too much control, but ME2 had a nice balance. DA:O gave too much control (though not nearly as much as ME1), but DA:2 had a nice balance that was a bit more interesting than ME2.
I'm more confident in DAI simply because it is a different writing team from the Mass Effect series and again, I loved DA2. I just hope the fan hate for DA2 doesn't effect their writing in a terrible way.
Please note, a lot of people that hate games like DA2 and KOTOR2, tend to harp a lot on the firsts of everything Bioware being the best experience ever. DA:O, ME1, Jade Empire, Baldur's Gate 1, and Neverwinters Night 1. They tend to cry over nostalgia and they'll probably hate everything put out after the original of anything Bioware makes. I predict that If they did a Jade Empire 2, these very same people would hate Bioware for it even though they've demanded it for ages because it won't be like the original. I'm sorry, but once that cherry is popped, it's not coming back. Please move on.