I don't like to spoil the party, but those don't seem authentic. At least not to me, anyone else?
It just seems like somebody muted the actual audio and played those tracks over it. There's no sound besides the music which is not distorted at all from, say, being played over speakers in an arena; there is no sound of her skating on the ice, there's no crowd applause or cheering throughout, not even at the end.
