Just listening to the sounds, Yuna's music sounds really like a guy. I didn't imagine that this type of music could be so cute. Perhaps the fact that Yuna being very skinny, fragile-looking young woman creates a suprising effect that makes the program more intriguing. This reminds me of a fashion column stating that women who are soft and femine actually look better wearing something hard and women with a more masculine face look nicer with something feminine and delicate. The basic idea is to betray your first impression, making you look less easy to understand.
At the same time, Yuna does have powerful, almost masculine skating so that the music does not overpower her.