My beef was people was saying that Gracie ought to be more forlorn because the movie takes place during the Holocaust, when clearly the movie's whole premise was to show a joyful attitude. That said, did Gracie do a great job being true to the letter of the movie? Probably not.
However, the music is joyful, beautiful. So I don't see why people were fussing about that aspect of the her interpretation rather the fact that she lacked the nuances to skate to this music.