He does teach PE in schools.
No he doesn't. He goes into schools or live streams into them as a minor celeb, does his workouts and the kids copy him.
He doesn't plan schemes of work featuring all the required skills including throwing, catching, moving in different ways, different teams games involving attacking and defending, dance, gymnastics, having to engage kids who really can't be arsed to play hockey or rounders and lie on the edge of the field having a chat, making sure he has all paperwork ready to show progress for Ofsted, you get the jist.
I'm not knocking what he is doing, I think what he has achieved from his beginnings in his local park is fantastic and I really think getting kids active by doing his workouts is a great thing to do, especially at the moment. I have a couple of his books and I find his workouts pretty effective.
He just isn't a 'PE teacher' that's all, there is more to 'physical education' than standing in front of kids and doing a HIIT workout 🤷♀️