There's a couple lines in what he said that had the idea of imposing own standards for martial arts.
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He's stating that there is a 'true' form of martial arts, and that student's and teachers should be following this.
Basically saying that if MA are not being taught the 'right' way, then it is making a joke, immoral, and unacceptable.
If he focused on the way his version of MA impacts people positively, that would be one thing, but he's much more focusing on how schools shouldn't teach the wrong way. Which makes sense. He's angry, he's realizing what he did for over a decade wasn't what he wanted. But it's still imposing his own standards for others.