That ending was unintentionally fecking hilarious by the way. Might as well have had someone come out and announce "ladies and gentlemen, this is the end, of Wrestling"
I mean, Reigns won, but then he didn't win, until after he won again? So Rock came out for no reason...except maybe he came out to "save" the match and that was the suspense...except everyone though the match was finished anyway? But then suddenly it was? and then everyone booed, because it turned out the end they thought happened was the same end that then did happen, and which they'd already booed the first time, and then again, for no reason? What?
How on earth did WWE think that was ever not going to come across as a massive mess? Even if it was someone the crowd were actually behind it would have come across as baffling.
I'm not sure how the crowd booing Reigns was a surprise either. I don't even follow wrestling apart from basically this thread, but I could have predicted that would happen.