Seriously? I think that ballet dancers are amazing beings, and what they do with their bodies is transcendent art. Arnold Haskell, a ballet critic in the early decades of the 20th century, said something to the effect that there are three kinds of people in this world: Russian ballet dancers, ballet dancers, and very ordinary people. I just love that perspective, even while knowing it isn't literally true.
Admittedly, you need ballets for them to display their art, but I wouldn't say they're forever. Only the very best are carried through the generations. Even some of the Balanchine ballets are on the back burner.
Anyway, I think that "worst perspective ever" is hyperbole.