I’m not sure. I think much of attacking a rim is habit. In other words, a player finishes in a way he has always finished, almost his entire life. Not many guys finish with both hands. And how often does a player like Jae actually attempt to attacking and finish at the rim in a game? Once or twice? So he just attempts to finish the way he usually does, which isn’t very often.
I think good coaching and reps (after practice) could help a ton. It’s basic muscle memory. Right now, there isn’t much of that to go off of because it’s just never really been a part of his game. He doesn’t attempt this much. But to me, it seems like with his first step and ability to get by guys, it definitely could be.