IMO a fixed position camera with zoom does a much better job than POV for MA. Look at the vids posted in the instructor/coaching forum; almost all are from fixed position cameras with some zoom. Of course obtaining footage with a fixed position camera is at least a two person process, but if you have a buddy who's interested in obtaining some useful MA as well, you can probably make it work.
That said, not everyone is very good at hand-held shooting, at least not at first. I went through a ton of trial and error when I first started shooting hand-held, and so did most of the others who offered to shoot. Watching the day's footage at happy hour turned out to be very entertaining, often frustrating, and almost always informative, whether it was finding out what you were doing wrong/right skiing, or shooting. I fondly remember the calls of "ROLL THE UGLINESS" as I diddled with connections to the TV. Wifi, and a smart TV would help simplify the connection aspect. Also, employing a tripod or a monopod that you could probably improvise with a ski pole should produce steadier footage.
FWIW, I've had my GoPro for two seasons now, and while I like a lot of what it's captured, I feel like it's only been of limited use as far as an instructional tool. I have gotten some decent footage from following other skiers/boarders with the camera mounted on a pole, but the head or chest mounts make it difficult to keep your subject in frame, and IME there's too much shaking on anything but pristine groomers, which tends to make the footage that much less beneficial or revealing.
I'll just throw it out there that if anyone ever wants to kill some time shooting at the Luv, I'm happy to oblige.