Originally Posted by Niara
Larian don't actually have the power to retcon existing lore - Video games are officially considered secondary source, and are not considered canon where they contradict or disagree with published books.
To be fair, that does mean Larian can use a non-canon implementation of Shar.

That said, Larian should make it explicit (again through dialogue, journals, highlight-popups) exactly how their Shar differs from canon.
Originally Posted by Eddiar
Thats not the description that SH gives us though. Maybe Shar is being retconned?
SH is not a trustworthy source. She will not give us the general population's view of Shar and anything she says should be viewed with suspicion. Members of cults probably won't be objective about their cult.