I only watched 3 minutes, but it was a lot of talking about nothing. Just selling stuff.
If you go a bit deeper.. He talks about lead leg blocking which is where the energy is filtered towards(which is huge). Shows that the body(hands)is creating things; it’s not from the ground up. Puts a BIG hole in the scissor stuff. Also mentions that weight distribution plays a big role w what the lower half does. IOW it’s a reactionary/timing piece. Also slightly() mentions that the upper half decels the lower half. Basically all the stuff the pros have been telling us for 70+ years.
But the kicker to me was that he stated he can get a kid to improve their overall swing and kinetics/kinematics within a short period. 15 min or so. A FAR cry from ‘everyone is different and it takes specialized training and tech to help a kid/adult learn how to swing a bat efficiently. Maybe months etc.. lol.