His athleticism is unquestioned. He's clearly fast, can jump through roof, and is probably quite strong for his size.
That doesn't mean he's got the right coordination, and game time quickness.
He's been playing organized ball for at least 5-6 years and still struggles to do basic tasks like catching a pass, shooting a FT, or not bobbing a rebound, easy putbacks.... things that some junior high schoolers can do.
Can he get better? Maybe, but if he hasn't gotten some of this by now, hard to imagine significant mid junior season or senior year turnaround