To be fair, it was The Authority coming out to the ring, not HHH, Steph, and Rollins
I am an avid Undertaker defender, so disclaimer, but I think he looks better than he should, and that brawl with Lesnar was pretty cool. I think they are trying to redeem themselves after the lackluster WM match last year, and Taker doesn't have many good feud potentials. Hopefully they can work a good match at Summerslam. I don't know what Taker has left after this, either physically, or in terms of opponents. The most recent WM match against Wyatt seemed like a huge drop-off after his run of Michaels x2, HHH x2, Punk, and Lesnar.
I thought Sting was going to be in the Summerslam mix somewhere, maybe it is still in the works.
And Hogan, well.... without him, how many of us would even be talking about wrestling in 2015? I know he was the most significant part of my WWF fandom in the 80s. For me, wrestling was him, and Flair in the NWA, and then everyone else.