They also edited Viconia's age in the wiki to make her way older than she is.
In BG2 she tells you her permanence in the underdark lasted an age and a half: 150 years, then 72 years on the surface between the fall of house DeVir and the events of BG1, then 124 years till present day Forgotten Realms. Last time i checked, that adds up to roughly 346, not more than 600(when Drow start aging).
And yep, agree, both Sarevok and Viconia have been heavily slaughtered to prop up Larian's original characters.
Also... i will add something(can't remember if SerTomato's great thread mentioned this or not): Viconia loved her brother so much, she protected him from all the worst abuses Drow males are subjected to... it doesn't make sense that she suddenly betrays that love just to obey Shar, cause she already forsook Lolth for "less" when she didn't want to kill a child.
Not a great move and definitely earned rightful flak, especially when Shadowheart(really guys? the name is cringe, especially for a Sharran) literally screams "No one will ever remeber your face".
They could have been named differently, within the same roles and Larian would literally benefit from that as there wouldn't be the criticism about how awfully they have been handled... now the characters themselves are pretty dumb and uninteresting evil for evil sake and lapdog for lapdog sake, but at least it wouldn't be character assassination of two of the best characters from BG saga.