His problem is in assuming that all people start the problem from the same position or with the same relative impediments to learning.
Having seen Dan work with myself and others, I'm pretty sure that "simply is not the case".
He's also not the only one I think that says technique is not what you train, it's what you do after
you've trained. Yiquan comes to my mind (e.g. Lam Kam Chuen).