good points
I believe that heavy weights are the best at training other heavy weights because I have had enough smaller coaches asking me to do foolish things (like run as far as a 115!) (From the op) because they didn't understand the abilities and limitations of the larger frame
When I took over my old high school wrestling team and changed the program by eliminating running and focusing exclusively on wrestling my heavyweights performance Skyrocketed
As a heavyweight myself who suffered the foolish one size fits all training strategys smaller coaches tried to implememt I knew that asking my 280 lb athletes to run as far as a 115 lb athlete was the epitome of foolish
...of course no one would expect that 115 pound athlete to lift as much absolute weight as the 280 lb athlete in the weight room LOL
The fact is smaller athletes are actually more durable less prone to injury and are stronger pound for pound in their larger cohort
Smaller athletes are also capable of taking much harder punches without going down thus their fight strategy must be very different than the larger more delicate more knockout prone athlete
It's actually very simple science explained in the ant and the elephant conundrum as the ant can lift some 16 times it's body weight where an elephant can only lift 1/8 of its bodyweight
The simple scientific theory is "Personified" in compeditive weightlifting as the smallest athletes are capable of OUTLIFTING the largest athletes by an exponential degree (pound for pound of course not absolute)
"
This Tiny Woman is One of the World's Strongest Humans....Technically, she's 137 percent stronger than The Mountain"
https://www.vice.com/en_us/article/pae8bk/this-tiny-woman-is-one-of-the-worlds-strongest-humans