That one is going to make the "I shouldn't be alive" shows....
About two weeks ago, a couple seasoned backcountry skiers - brothers in their mid thirtys - highly trained were traversing a cornice. One brother fell when the cornice gave way only three feet from his brother, he perished in the ensuing avalanche while his brother could do nothing to stop the tragedy.
I agree the video is remarkable, but that dude should have bailed back into the treeline until his riding buddies could safely retrieve the sled.
Aren't I the Debbie downer this evening!? LOL