Think it started way before Rock even in the 90s dudes like Piper and Snuka were on that wave then Hogan in the 00s etc
As for the last of the breed shyt and who will hold up, never underestimate nostalgia generation to generation and who grows up to tell the past. Everytime people say who now from recent times can match the 80s and 90s guys, dont forget kids now will talk about The Shield, Wyatts, Brock Lesnar, John Cena, Finn Balor, Daniel Bryan and CM Punk the same way. I think the Ruthless Agression era was forced as hell but people rate Edge, Batista, Angle, Hardyz like they on that 80s/90s level too.