I read this paper and it's interesting, even though I'm not interested in martial arts (but I am interested in what the author calls "epistemic vices"). I didn't see where it's saying that "The whole industry gets its ass kicked by mixed martial arts" and it seems very respectful to martial arts masters, also, saying, e.g. that:
So am I advocating scoffing at the word of your sensei or senpai? No. That’s not being an epistemically responsible agent, that’s just being an asshole. All the old constraints on your behaviour still apply. I’m arguing for the importance of being cautious in what you believe.
Instead of saying they are "trapped in their echo chamber, sniffing their own farts". Although I guess you inevitably sniff a few things you wouldn't normally chose to in a dojo (such as other peoples' sweat or foot smell).
Interestingly the author then goes on to quote "the words of the Buddha "copied from their place of honour on the wall of Harry Cook’s dojo":
Do not believe on the strength of traditions even if they have been held in honour for many generations and in many places; do not believe anything because many people speak of it; do not believe on the strength of sages of old times; do not believe that which you have yourselves imagined, thinking that a god has inspired you. Believe nothing which depends only on the authority
of your masters or priests. After investigation, believe that which you have yourselves tested and found reasonable, and which is for your good and that of others.
And while that sounds very enlightened to the modern reader, there's at least this guy who thinks it's a mistranslation adjusted to that modern reader's sensibilities:
https://fakebuddhaquotes.com/do-not-believe-in-anything-simp...
Anyway an interesting read, so thanks for linking.