The owner is on this forum from memory, and several other forums.
I'd be interested to know the details, and how the vehicle was recovered. You can see the exact point at which it went badly wrong.. up until then it seemed a fairly ordinary manoeuvre. There are plenty of know-it-alls in various comments on the video saying it was stupidity, crap vehicle, etc, etc but IMHO this could happen to anybody and serves as a lesson to illustrate just how dangerous it can be reversing down uneven ground.