It seems Larian forgot that Sarevok could be redeemed and that he had a more tragic ending (suicide if I remember correctly or him fighting against an entire army of orcs).
I think we can easily put Viconia, Sarevok and everyone else's post-BG2/ToB fates on WOTC rather than Larian. Not sure how much leeway WOTC gave Larian. Does anyone actually have this kind of info? I'm interested to see how much input WOTC had on these kinds of things.
If the statements by Larian are any indication I imagine Sven and the rest had very little leeway on writing their story. They're not chomping at the bit to make more BG content.
90% of this game feels heavily curated. Yeah, sure, it's definitely a Larian game, but even D:OS 2 doesn't have this level of razor-sharp *specificity* in its writing. It feels like a Larian game that WOTC meticulously looked over, hovered over their shoulder and greenlit every other word, character, power, spell, quest etc.
I'd even argue the overtly D:OS inspired elements aren't actually Larian's doing, but
WOTC meticulously demanding *that* too because it worked so well before.