Exactly this.
I think that there's way lower of chance that big air will be taken out compared to some of these motor sports. Skiing/snowboarding has way more depth when it comes to big air than any of the motor sports in the freestyle scene. Each year, skiers/snowboarders can improve on little things like grabs, landings, how clean it looks in the air, and then finally, number of rotations. I feel that in sports such as freestyle snowmobiling, there's a lot less smaller aspects to improve on from year to year, pressuring riders to just huck for more and gnarlier rotations which usually just leads to injuries. ...not to mention they are tossing a few-hundred-pound machine over their head.