That's fair, but you also had Daniel Bryan returning at the time and there was still a tremendous amount of support for him. Furthermore, the entire remaining audience at the time had just gone through ten years of one man being presented as the top guy and beating almost everyone that they faced. LOL Cena Wins was a real thing, and for those who say that Hogan did the same thing between 1984 and 1991 I'd say yes...and no. Hogan did beat almost everyone he faced, but he did not do it weekly. Cena was always on TV and in the main event of almost every RAW. He was badly overexposed by the end of that ten year run, and the last thing that people wanted to see was for another person to get plugged into that role for another ten years. At least Bryan's rise was organic, and people were rallying behind that.The peak of his hate was like 2015 rumble. His first major achievement as a singles guy.
I mean fair enough if he had gone 6.5 years without losing clean like Hogan or holding WWE title most of that period people would get fed up but Reigns heat was there before they even starting pushing him. That same heat i can't remember being there pre Punk podcast among hardcore males.