Sorry but i do not agree. All of them do not say he is doing it all wrong. Far from it.
Having said that, a pro isn't going to tutor you to swing it that way. Why would they?
They wont at the moment, because they dont know why his swing works and makes him an elite golfer. Equally, they dont know why what is taken for a textbook swing today (and that textbook version tends to evolve with the decades aping the swing of the generational great on the mens pro tour of the moment), works either, but are following the crowd.