the 80s, 90s, and 2000s all had their awesome moments in music. The later 90s were some of the worst years for rock music. Rock didn't get good again until the funk-punk, electroclash movement gave it new energy starting in the early 2000s but not gaining much mainstream influence until the late 2000s. The problem with rock today is that the vocals are over-produced. You get these awesome edgy amplified guitars combined with an autotuned voice. Most people don't hear it, because it's not like T-Pain, but proper autotuning that's supposed to be subtle. Nevertheless the crystal clear, concert-tuned pitch is a dead giveaway and doesn't sound good for the genre.
Autotuning sounds better with pop and dance because the instrumental timbres of synths go better with electronically adjusted vocals. And I can see it's place when used well in modern dance fusion rock bands who followed the Happy Mondays tradition. But in rock that's trying to be rock, it's awful.