^ It's tough for a big man to be a 1st option on a contender without being a back to the basket hub. Nowitzki was the only one who wasn't, but he was an elite shooter. Durant is like a half big because he has the frame of one, but he's really a perimeter player and is also an elite shooter.
Wembanyama doesn't have the frame to be the former archetype and obviously has a long ways to go to become the latter. Otherwise, he'll be evolutionary Robinson/Garnett/Davis, which will end up being thought of as a disappointment considering the James level hype.