Sound about as useful as splitting rubik's cube champion by weight class.
Video looks impressive, though the resources poured into that training seems excessive to me. Maybe I'm too poor and don't understand how rich people raise their kids?
There are arguments that it promotes equality, that it’s more fair… but I think the reality is closer to “it would be embarrassing for a man to be beaten by a woman”.
Which is a good thing, because going downhill is fun and easy!