I have yet to see this mythical rider that can throw corked spins but not make a clean arc. Is there a dude that throws a 360 than skids around yeah but so does the majority of the skiers not in the park. Being able to throw clean spins neccesitates the efficient use of edges so this is really a silly argument.
This. Anyone who thinks otherwise is either delusional or compensating.
And to anyone who might judge park skiers for skidding turns between features... try carving high speed arcs on some park skis (with a park tune) and get back to me.