Does look good. One thing I would say though is he’s getting out of his crouch early. That’s a typical issue when evaluating catchers without a batter in the box.
PBR performs their measurements in a bullpen, without a batter. Having said that, your son has good form and measurables, good luck to him!
He has worked on exactly that, his mind would work a million times faster than his body responded, he was also stepping to the side a lot giving some of his throws a right whip, he is still young and has a lot to learn. For being a taller kid, which is why I even replied to this thread, from his primary he can literally sit on his but and get super low, which is where stretching and conditioning has helped him with being so tall.