More than anything else, what it looks like is unintentional.
Thanks to the GoPro camera, those who enjoy various types of outdoor or extreme sports can relive those wonderful “oh, shit!” moments over and over again in high definition, even sharing them with the public, if they choose. This is very much one of those kinds of moments, where a snowmobiler is finding his way through some dense forest only to accidentally go a bit far and suddenly find himself tumbling over a cliff.
Fortunately, and this is one of those good things about snowmobiling, he landed in a big pile of soft snow. It could have been a lot worse.