>>42521182
It's a one-dimensional idea for sure. Indicative of the more childish era of the fandom. A lot of early background pony characteristics were one-note like that. Lyra's only personality trait was liking humans, Octavia likes classical and Vinyl likes dubstep and they have to hate each other, etc.
It seems like the more "into" music people are, the more welcoming they are of various genres, and I know many people who can't name a favorite genre and just "like good music". Pidgeonholing into one genre and decrying all others is indicative of immaturity and an underdeveloped palette, in my estimation.