Why waste breath defending it, when there exists very simple ways to make the training constructive?
"Acid-trip with Kjetil Jansrud and the alpine-boys" (Exact translation)
"Acid-training for the legs. [Norwegian newspaper] joined Kjetil Jansrud and the alpine-boys on a 45-minute anaerobic workout in the gymnastic hall on Hasle. A bit monotone, but good for alpinists."
Do we really need to see more? These guys approach to training needs to be defended?