Costas is right, and I say that as a snowboarder. For me, any event that isn't judged by entirely objective criteria - speed, time, height, distance, weight etc - isn't a sport. Gymnastics, diving, figure skating - all very physically impressive events, but not really sport. A lot of the snowbarding stuff such as slopestyle falls into this category.
As for Team Canada, I'll let MB give you his views on the inclusion of Rick Nash.