If you like to leave the piste, then get the gear and learn to use it. Get a coffee and watch why...
The first comment on Youtube is hard to disagree with :-
StraitD2 wrote:As far as I'm concerned(no, i'm not an expert, but i've done the training), this is about as good as it is going to get. Not going at the same time and having one off to the side was the first right thing they did, so they both didn't get buried. Started at the last known sighting of his body before getting buried, then doing zigzag pattern while staying calm. HAVING and USING the transmitter and receivers was the second thing that was done right, and of course digging him out. Aka having shovels on them.
Dennis is a lucky guy; his lips were "turning purple" even though his buddy got to him quickly.
It looks as if he would have been dug out quicker if the group who came up to help had been equipped; presumably they weren't wearing transceivers either so one can assume the outcome might have been different if one of them had been under the snow.
If you have a GoPro but not a transceiver, you should probably have a word with yourself about your priorities...