I've seen a fair few vids of my instructor, Rick Spain's, ring fights.
Casting such pearls before the self-appointed anti-theoretician forum police swine ("pigs" was never more appropriate a moniker than in this context), squealing demands for "evidence" for claims neither he nor I made, would be a waste.
As he's trained, and still does regularly, with long time non-traditional MAers of the first order like head of BJJ Australia John Will, he has nothing to prove to those inconsequentials in the third and lower tiers such as those baying for video blood here.
Enjoy your day
Better yet, get a life away from the keyboard and enjoy that.