Hendrik,

While I certainly agree that fitness is important and squats are a great exerciser; SNT is a totally different animal with a different purpose.
You are comparing applies and oranges.

Squats will do nothing to train fighting skills but will improve strength and endurance.
I imagine a boxer should stop hitting the heavy bag and just do squats in order to be deadly, same with WC we should all stop doing the forms etc and just do the fitness exercises