I think it's just the Hollywood thing got out of hand!
Some of the wrestlers POV-Rock got noticed in Hollywood cause of wrestling and he left full-time for it,In the years that he was gone WWE invited &wanted him even IF for small appearances and Rock denied and it seemed in early interviews that he wanted to forget all about WWE and focus on his movie career,Even dropping the Rock nickname for a while,He's back and many of the"boys"get offended that he acts like a movie star even backstage and doesn't talk to much people,Last WM was focused on Rock hosting and what he was going to do and this WM has gotten a whole year build-up with the match over-shadowing everything elsse
Some fans POV-Rock was seen as a sell-out the day he left,Many feel he's been getting way too much attention since last year,Rock has had hatter fans since the Attitude Era itself when he was hated with such passion like with Cena
Stone Cold-He left cause of injuries,He has had tons of appearances in the Rock's missing years,He has"hanged with the boys"(according to them in interviews)backstage,IF he were to have a HUGE match at a WM against someone like Punk or even Cena..It'd mostly likely be build up in months instead of over a year