i actually loved the video. i get that the body double may be frustrating for some, but i honestly think that under the circumstances, with her having a broken arm and all, it's great she managed to still make the video, and actually skate in it, just using the double for the more demanding scenes. the video is gorgeous too. my only complaint is the lack of story.
this is of course, assuming it's actually her skating with the sling on. it wouldn't make much sense for it to be the double.