Does a difference in mass/height/strength make stomping on someone's knee less effective?

A number of MMA artists on youtube talk of mass being everything. However, shouldn't the knee be something that can act as a perfect equalizer, barring weapons?

Kicking/stomping/"standing" on the knee from outside/on/inside as various approaches.

Submitted July 15, 2018 at 05:27PM by Hoihe https://ift.tt/2mhH0yB