It would be a massive shame if all developers decided any one system was ideal and just made those.
I agree with this completely. But don't you think this is exactly what we're getting nowadays? I am speaking strictly only about classic, old-school cRPGs (similar to BG3) and NOT the big, open-world, action cRPGs. And among those RPGs, it's almost entirely TB nowadays. You can count the RTwP games in single digits.