Can a movie be a disney classic without being a musical?
Raya and the Last Dragon feels like a generic Indiana Jones movie. We go set to set purely for the ride, not the characters. Scenes happen just because the story needs action or comedy.
All the characters lack any depth to them, Raya's trust issues don't stop her from trusting everyone she meets except for Nafaari. Musicals let the audience know what the characters are feeling, they give substance to the story and make you want to revisit it.
What's Nafaari's problem anyways, why does she feel the need to betray Raya so much? And why can't Raya decide on whether she has trust issues or not?
The songs in these disney princess movies are what drives them, they invite the audience to feel what the characters are feeling instead of just accepting what they see on the screen. They connect us to the movie. Something like Frozen or Moana wouldn't be nearly as good without the music, just as Raya feels rather plain having none of its own.