I am not a fan of Zagitova, and Carolina is really my favorite female skater, but I don't quite agree with you. I think for her age Zagitova is not that childish and immature at all. There are/have been older skaters than her who seem/seemed more immature in their performance and interpretation. As for the ''frenetic arms" and "Swan Lake on crack", the music is actually from the 'Black Swan' movie, so the choreography and performance of it doesn't have to be traditionally balletic - the movie is not about that. I personally like that the choreography is somewhat untraditional in this program, as it suits Zagitova more (in my opinion) than a traditional elegant 'Swan Lake' choreo would, exactly because she is not very balletic. 'Don Quixote' is a bit different - it's more energetic, dynamic and vibrant, and also more "free" (I am not talking just about Zagitova's program, but about the most famous parts of the ballet danced by Kitri and her as a character). 'Swan Lake' is less energetic, more serene and elegant and, I think, more difficult to convincingly pull of for skaters who are not that balletic - especially if they and their choreographers are trying to take the traditional route.
