who knows, some people pick up grappling faster than others, it's not like all boxers have the same body type, balance, speed strength, cardio for grappling etc. Some boxers can train all your life and they will won't be as good as for example Gus or Whittaker at takedown defense.
As if sports work like this, it's not like if Lebron and Kobe both started training tennis for 1 year they would be at the same level as each other.
BJ Penn got his BB in like couple of years, some people train BJJ for a decade and doesn't reach half of that.
People using "time trained" as some kind of measurement is stupid as hell. Shaq can train 3 point shooting for 50 years and he still won't shoot as well as a high school Steph Curry
As if sports work like this, it's not like if Lebron and Kobe both started training tennis for 1 year they would be at the same level as each other.
BJ Penn got his BB in like couple of years, some people train BJJ for a decade and doesn't reach half of that.
People using "time trained" as some kind of measurement is stupid as hell. Shaq can train 3 point shooting for 50 years and he still won't shoot as well as a high school Steph Curry