Does watching snowboard videos really count? Hell yeah. Watching the best snowboarders in the world, be it in the X Games or in the Alaska backcountry cannot be bad for your own act.
Sure, you might not be popping a triple cork out of a Superpipe, or dropping into a massive spine out of a heli, but by watching the best it can help to visualise the tricks and understand the necessary movements and setup involved. And if anyone gives you grief for watching too many vids, just say you are practicing.