@cmp2020 showed me her 60 Minutes video a while back. She is pretty amazing, but he did happen to notice that she "cheated" a little on one of the four notes in her ad-hoc composition. I'm no musician, but if I remember right, she used a B-flat in her melody instead of a B-natural that was on the card or something like that.
Anyway, that doesn't take anything away from her ability, and I agree with you that it's encouraging to see that talent and passion in a young musician.
RE: People always ask around me 'if prodigies like Mozart/Bach lived in this era, what would they be doing?', here's one of these people. (A few videos and information)