Another point I wanted to raise about the dark urge story, it actually reminds me of another famous Bioware game that came out a little after BG2. the amnesia, the reveal of you being evil, it's very similar.
spoilers for a very old game:
I'm talking of course of Revan from Knights of the old Republic. I don't think it's exactly the same, because you being potentially evil is not a secret at all, but your true origin is, even if it's a really badly kept one. which is not so different from the other "secrets" in this game (the most prime examples being the nature of Astarion, the Faith of Shadowheart)
