Lots of people die through acts of foolishness, but when they are grown up adults and having had advice and training that should give them the sense to consider their actions, there is not much else one can do to keep them from their own fate.
I don't do water skiing either. Nor would I encourage anyone to try it. But, if that is their wish to get whatever kicks they need, then it's not up to me to keep going on about how stupid it is, any more than high wire walking across certain death drops, bungee jumping, or mountain biking between trees and rocks at high speed.
As for the video, I know the airfield, and the guy taking the video.
It was at Glenforsa isle of Mull with a large hotel balcony perfect viewing platform overlooking the bay, so "look at me, Sky God" may well be true.