jobo
Grandmaster
I don't think that true, it's certainly not in the art I study, were we are encouraged to challenge and improve techniques to fit our own attributesIt is an example of the culture differences. Where bjj for example is all about critical thinking and testing ideas.
And other arts rely on authority.
You can actually notice the difference in conversation as well.
He did a BJJ version but different culture.
Rokas Leonavičius