I'm having to listen to it over and again to get the general idea, but it seems close consideration of the exemplar is worthwhile.
I'm pretty sure I see what they're trying to say, David, but I don't think it's particularly revelatory. I could say "do Taiji and you will get internal strength", but saying that and doing a form for you isn't going to tell you the myriad unsaid things that are going on.
For all practical purposes, those people are saying "do Tanren and you will develop Aiki". Really? Farm Out.