That missed dunk against Oakland happened for a couple of reasons IMO. One, his conditioning still sucked at the end of the year. Even Cal called him out during the year and said he wasn't putting in the work to get better so I would assume that includes improving his conditioning. If true, Cal should've sat his *** and played someone more deserving who was putting in the work but that is for another discussion. Second, all of the freshmen were scared and pressing in the postseason. That missed dunk was in part due to nerves.
Regardless, he is not ready for the NBA.