Nothing in BG3 has been inspired by Baldur's Gate and I think they made a mistake.
See, this is exactly what I'm talking about.
There's no way for you to know what inspired the writers. I mean that. Literally. There is literally no way for you to know. Yet you feel confident enough to proclaim it without a doubt.
How could you possibly know what inspired the writers? You haven't even seen the whole game. You don't know the mystery behind the tadpole or who the Absolute is or what's going on with the dead three. I'm talking about the entire plot here, the entire mystery of what's happening to the character.
None of that is known.
There is literally no way to know what inspired the writers, and what parts of that inspiration may have come from BG.