No, and thats not even with saying that the last 20 years in the music industry has saw the worst and most overhyped music artists in history.
I think you are stretching it a bit far, MTV was succesful before Thriller due in part to Rock, New Wave and Transitional bands like Styx and Journey. Even without Thriller Pyromania left a huge impact that kicked open the doors for Hard Rock and Heavy Metal on MTV.MTV probably wouldn't even be a thing right now if Thriller hadn't come out. The channel probably wouldn't have existed past the mid 80s.