I dislike his small hands. That just limits his ability to catch the ball in general. He will spend a lot of his time in the crowd. Be it finishing around the rim, or grabing boards, so it is even more vital.
Maybe I am overeacting, but can he palm the ball?
Wait what is this based on? I have seen this guy play close to a dozen times now and have never gotten that impression. In fact in my view, one of his top 3 strengths is his ability to go up and snatch the ball.
I saw these highlights and it thought so:
https://www.youtube.com/watch?v=bNRtRUKKYio0:18, 0:42
He naturally snatches the ball cause he is a big, big dude, explosive, muscular and long and his counterparts, college guys, are not up to his level.
I would like to see him dunk a one-handed oop, something that is a valuable trait for a guy of his ability and position. It would provide his future NBA team with a more versatile version of vertical spacing, a modern bigs important role. I would like that my center can snatch a couple of rebounds with one hand as it is a necessity sometimes, in the crowd, while being out of the perfect box out position, when purely outleaping someone.
It is not his final judgment, just a thought and something I don't prefer from my top, top guy.