I like Chris's diagram and it follows what I think. In the end it is just a trick, but a very good trick. Just like the unbendable arm. But what you really need to do is to figure out ways to put it all into your normal movement and into your techniques. And then, discover new tricks that lead to new ideas and new principles.
There is nothing wrong with this being what it is. You can call it a "trick" or a principle, or just plain clever. It is what it is, and that's how we should judge it, it's the only way to learn.
I've got nothing against "CXW" (if that's what people call him), but he's not using a magic force that takes a life time to master. It's a quickly learned technique that you might find useful, I've used it in Randori a few times.
Takeda Sokaku himself said that he didn't like people who didn't pay for his seminars watching, because his techniques were very simple and easy to steal. Probably why a lot of current "IP" guys now won't make video's or keep their video's secretly, so only a few can see them. Most of these techniques are simple, and easy to learn if you get a teacher willing to show them to you.