Bullshit. Everyone and their dog is obsessed with retro this and retro that, nightclubs all over the place are putting on back-to-95 nostalgia-fests or nu-rave nonsense or '60s garage band revival things or neo-krautrock or neo-post-punk or steampunk jazz or or "I Heart The '90s" or whatever. The bread-and-butter of rock music is a formula that's hardly changed in half a century and operas and classical concerts still pull punters in all over the world.
existence of retro movements does not contradict the fact of our culture's prevalent, dominant, underlying obsession with innovation and newness.