Not sure if they're "just getting their feet wet" anymore, they've been killing it on the main roster for almost 2 years.
It's more important right now for WWE to give the fans what they want to see. Right now, in an era when WWE is in jeopardy with the Network an epic failure, I've never seen the wrestling fans more upset... part of it is the quality of the weeklies, but the other is a line I hear a lot. "Same old shit". "We want something new." What better way to do that than to get these cats who are just getting their feet wet a Main Event spot at a Big 4 PPV? What match with any of the top guys of "this generation" would be a bigger draw? Am not sure what match Cena could wrestle that would be a bigger deal, his match with Brock had a special appeal to it but that's played out... Maybe Cena vs Rusev, but that's another case of him vs a young talent, and most fans will fear Rusev getting Wyatt'ed. Kane and Sheamus have been pushed back while Orton really doesn't mean anything now for whatever reason you may give.
The one question I get left with is "if this is the blowoff we all want, what's next for Ambrose?"
I imagine you're under the impression that I particularly care when Ambrose and Rollins main event.
I'm simply giving you the rationale that WWE seems to follow.
It's no sweat off my brow if Ambrose/Rollins main events the Royal Rumble. I truly do not care.
Triple H may feel different. He might see this PPV get a low number and have no choice but to bump AMbrose/Rollins down the card
Why? Never forget, Vince still is majority owner and numbers mean everything to him. He is experienced based.
If Ambrose/Rollins are duds coming out of the gate, he may hold that against them in the big picture.
McMahon, historically, requires an established star main event an A-PPV with an up and comer to give the impression the up and comer actually drew a big number.
It sounds strange, but that's his world. If Ambrose drew a big number with Triple H, it would give the 'impression' that Ambrose drew a big number.
If Ambrose drew a small number with Triple H, it would give the impression that Triple H had an off night. Does that make sense?