Using the blindman's trick for heightening audio perception , this clip is as spectacular to listen to as it is to watch. Guess where the collective is?
Regarding the much needed investigation findings; it's no secret that power corrupts....flying skills.
For operators earning their bread and butter mostly in the flats and valley bottoms with the oddball mission up high....maybe an hour or two of mountain recip. time, twice a year to keep everyone honest.