It would also be great if a player could actually choose
as their deity
and dialogues with Shadowheart would be influenced by that. Like you could say "Oh you too ? I do as well." when she reveals she follows Shar.
There is of course the whole problem that her character sheet clearly says "Shar" as deity from the very beginning anyway.
I was thinking the same. Really interested in having a character that's also a Shar worshipper for one of my playthroughs.
But I guess since allegedly everyone on the Nautiloid are being abducted from the same place (Baldur's Gate), it would probably be difficult to justify you also being a Shar worshipper from the city who Shadowheart has never heard of/met before inside her little cult, since the game makes it extremely transparent that you're being pigeonholed into being a "Baldurian" whether you wanted to be or not.