Of course we know, man. That's Chief Flaming Chicken. JK. That's Danny "Lil Red" Lopez. Only noobs wouldn't know.
some guys are good enough to overcome the style disadvantage. If you boxed before it is simple to understand. You may feel you're good against certain types of fighters and bad against other kinds. Then somebody with the style you're bad against gets schooled by a guy you beat easily.
Boxers fail in boxing because to be a top boxer you need to be special in some way to be an elite boxer you have to be inhuman in many ways. Every elite fighter has something special about them. Hand to hand combat sports require you to be better than any other human fighter you were fighting. Most just don't make the cut.