I just think it was just a title, not an attempt to claim 90's was the Shizz while all other before it was sub par.
Rick also mentioned how late 80's Hair Metal music was fading. I still enjoyed it and under the makeup and hairspray were some great players, but MORE turned out to be on it's way and just like I had in the 70's, I listened to a variety from the previous decades, the current decade and on, into the future one from 2010's till now and basically tuned in to ALL types out there.