Ok, I lied 'cause here I am.
"Being able to spin all 4 ways is the best skill a skier can have, period" Ok, that's great. I agree with you there, but I don't see how that has anything to do with what this discussion is about. Good stuff though.
FIS mentality isn't about hucking big, ugly tricks - it's actually quite the opposite. They're about regulating the sport and telling athletes what they are and aren't allowed to do, with a strict linear way of progression towards bigger tricks. Saying that someone has to know all 4 9's before learning a double variation is something FIS would say/do. Got it?
"in snowboarding every pro snowboarder can do all 4 9's" Good stuff. It's a good thing the guy in the edit that started this whole discussion isn't pro, so I don't see what the point of this is. If he tried to enter a pro level open slopestyle contest he probably wouldn't make finals because he's not as good as the pros. Is that a bad thing? Not in the slightest. Nick Goepper probably has the most tech slopestyle run ever with 4 different double variations, all spun different ways. Seeing how he is pretty much on top of the slopestyle game right now, I'd say professional skiing is doing very well and I don't really see the issue you are trying to bring up.
This kid is an amateur skier who put out an edit of his biggest tricks in hopes of making it to an invite only big air contest. Those tricks happen to be very big, very impressive, and as far as I'm concerned he came out of nowhere while at it. That doesn't happen too often, and when it does, if you can't admit that it's impressive, well you're extremely jaded and should maybe stop recreating internet forums about skiing.