Thats not training in my opinion. That's a very delicate dance occurring between one person and one very upset horse. The illusion is who is in control. The illusion nearly broke a few time when the horse backed the person up against the rail and a few other times during the performance. That would be a very different story if the person did not have the whip. I would image that it was "trained" by only having pressure release when up on its hind legs.