One thing's for sure: you can't complain about Buddhists lacking prowess with "wet towel" and "cold shower" techniques!
PS Watched the video - FASCINATING! Quite amazing work those people are doing.
"When one is not in accord with the true view
Meditation and conduct become delusion,
One will not attain the real result
One will be like a blind man who has no eyes."
Naropa - Summary of the View from The Eight Doha Treasures