I'd rate that as a really strong point. You DO have to buy his theory of what makes a swing work. But once you do, his idea of what constitutes a serviceable swing is very eclectic. Only a few basics are inviolate. One last thing.
Hogan explains Hogan.
Gerry Hogan also believes it's important. That's what I got from the video, but it's not nearly the whole story. He suggests several specific thoughts that might help, and encourages you to pick the one that works for you. I went straight out to the back yard with the whiffle balls. None of his three thoughts did me a bit of good.