Nah. Pathfinder shows that nostalgia and 'crunchy dnd' does work. BG3 does show this as well. I have issues with it but comapred to many rpgs, BG3 will be 'nostalgic' and 'crunchy'.

Also, PE was pretty successful. PE2 on the other hand.

The key is the devs have to care. Obsidian big wigs no longer care. They became lazy just like Bioware. Hence why both are now trash.