Y'know, I love Gaolang but it kinda irks me that Kiozan was treated like crap for doing essentially the same thing.
Well, Kiozan is also kind of an asshole, they ultimately proved that his "Primal Sumo" had just as many weaknesses as "Modern Sumo", and I don't approve of him going around beating up marshal artists outside of matches but like Kuroki said martial arts are supposed to evolve over time.