I agree, wrestling changed but not because it got PC. I grew up in South Florida in the 1970’s with NWA wrestling and Gordon Solie announcing it. The wrestlers were: Dusty Rhodes, Joe LeDuc, the Brisco Brothers, Pak Son, Mike & Eddie Graham, Maniac Mark Lewin, Professor Tanaka, et al. I ate that stuff up. I even remember midget wrestling!
Back then, there was a good guy and a bad guy with very few in between. Today, there are no real good guys and everyone is pretty dark and evil. There also has been a lot of sex (even porn) and misogyny (I am pretty conservative guy and I rarely throw that term around) injected into wrestling the past 15 years. Oh course, there is a whole lot more money in it and that is why they are constantly pushing the envelope. I did catch a brief snippet of the Vince M. death the other day and I thought that this was a new low by even professional wrestling standards.
Bottom line, pro wrestling is total trailer trash entertainment; however, there is a little bit of trailer trash in all of us.
Wrestling was better with different territories. People moved around and it kept things fresh. The names you mentioned were great, particularly Jack Brisco (credible technical wrestler, takes on all comers) and Professor Toru Tanaka, a legend!
The mighty midgets were always a crowdpleaser!
Wrestling has been pretty bad lately. As in the last 2 decades. :-)