Well just people being too aware of the choreographed nature of wrestling nowadays compared to in the past. Wrestlers used to be larger than life figures and people would eat it up. People really got behind their favorite faces and despised the heels. Sgt. Slaughter's early 90s Iraqi sympathizer gimmick got an almost dangerous amount of heat but you wouldn't see that kind of thing nowadays since people are well aware it's not real. As for the Benoit thing I'm not really sure but I guess the incident placed an extra amount of emphasis on the safety and health of the wrestlers with a lot of precautions taken to water down wrestling as a whole.