Why are certain selections of music chosen by so many skaters?

I’m talking about famous motifs from music like Swan Lake, Carmen, Turandot as well as your Hallelujah’s, Moulin Rouge, and lately I’ve been seeing a lot of This Is Me from The Greatest Showman.My theory is that well-known music often has a well-known narrative (like with Swan Lake, all spectators and judges will have a general idea of what story the program is going to tell) and it consequently has a favorable effect on PCS. But I imagine music selection is more nuanced than that. Can anyone provide any insight into why certain pieces are commonly picked for skating programs?