Your results depend of your genetics, nutrition, lifestyle, know ledges, training, family, and drugs.
Woa, amazing discovery.
The only useful advice in their tirade is that after spending a while in the little world of physical conditioning/ bodybuilding/weightlifting/ fitness whatever world, you understand more and more about it. Another pure intellectual gem nobody would have thought about right?
These clowns are just flattering their egos, just like 99.9% of other clowns in the "industry".