Yeah freestyle/freeride snowboarding is supported more by sponsors because it's just way more mainstream and popular than free skiing. Just look at the view counts on all the X games events, the snowboarding ones consistently get way more views than the skiing ones. This is kind of surprising because I know that all the hills I've been to have had way more skiers than snowboarders that ski the park and do freeride, but I guess casual unassociated viewers prefer watching snowboarding for some reason.
As a very biased skier, I'd much prefer watching people ski down this kind of course. It's just physically easier to control skis in freeride terrain with booters like this, which shows with all of the crazy washed out landings and sideslipping you see in natural selection. Leaning back on the heel edge after every single hit to kill speed just doesn't look that great imo.
Probably shouldn't make it a skiing vs snowboarding thing, but it's hard not to when snowboarding gets so much more funding and support for events like this. In all honesty, it's awesome when either gets the opportunity to do an event like this and we should be happy for any free snowsports content, especially something as rad as natural selection.