I can't understand their negative philosophy. It is not even worth wasting time to explain the fact that progressive resistance training in the anaerobic energy system is far superior to bodyweight exercises. I and some type 2a fibers. Strength training works the type 2a and predominantly,the 2b fibers. These fibers are responsible for the development of speed and power as well as strength.
Strength is the ability to produce force.
Injury prevention, i.e. ligament, tendon, bone, and muscle thickness, are stimulated far better by progressive strength training than bodyweight exercises. Progressive resistance training is far superior to bodyweight training in just about any comparison possible. It is unbelievable that someone could have an opposite theory and be taken seriously. It has taken decades of hard work to educate the head coaches of all sports not to fear strength training. Properly performed progressive strength training can produce only positive and optimum physical results.