My guess is he's over-coached. Technically close to perfect, but so are most of the guys. He never had a stretch as a grom where he could just have fun surfing though. Colapintos have the same basic training ground, but no Dino sitting on their shoulder and you can see it when they're surfing, particularly in Hawaii (put another way, Griff killed Hawaii this winter, but I don't recall a single Kolohe clip from the same period).
You can see it in younger kids from Lowers too. So many insane surfers, but the ones who have figured out how to make it fun seem better set than the ones who just want to win contests (Jett Schilling vs. Kade Matson eg)