In the past week, two snowboarders have landed quadruple flips. The response on Newschoolers has been almost unanimously negative, with people comparing snowboarding to aerials, and hoping that this never happens on skis.
It may be just me, but I think this hostility is utterly over-exaggerated. Freeskiing is a sport that will never be defined. Face it however you like, but throwing quads is progression. Freeskiing doesn't progress forward, it progresses outward, into many different directions and pathways.
Being upset over a new trick being thrown is a waste of time. The first person to throw a quad on skis will have been working up to it their whole life, and will feel an incredible sense of accomplishment when they finally land. That is the essence of the sport.
I for one, have never been all that successful at all in the park, and will likely reach my death bed never haven even so much as landed a double. Just because I like to focus on a different niche in the broad spectrum that freeskiing takes up, doesn't mean I can't respect people progressing the sport in other directions, and in fact, I love when it happens.
So focus on the aspects of this great sport that bring you enjoyment. If you don't like watching fast rotations of enormous jumps, then don't, just continue to progress and support the progression of others. People throwing quads are not dooming the sport, but instead widening its reach.