Swingbreaker forward chains before he backward chains.
That is the problem.
Quality rotation and connection are not properly learned. His students will get the bat blasted out of their hands because of the built in delay in their swings. Can work with young kids. Won't work further up the food chain.
Backward chaining teaches a rock solid base of rotation and connection, from which you can add a "running start".
If he were talking to people who already have a good base of rotation and connection, and he was spewing his theory onto them, I'd leave him alone. They may have success.
But, he's not. And in the process he's misleading kids.