Well clearly they had the Authority screw Ambrose out of the IC Title to try and make it seem like there was at least a 1% chance he could maybe win at Fastlane. They're banking on the fact that since Ambrose has dropped the IC Title, it's now believable that he could move on to the World Title. And here's the thing: it does free him up to do exactly that. In terms of fan investment that might ultimately be the best decision. Obviously Reigns is gonna be going over, but I honestly don't see that as the right call.
Let's face facts. Roman Reigns isn't over a babyface. I'm not meaning this as a comment on his talent or his ability or how I personally feel about him as a performer. I'm reporting the facts. He doesn't get a strong babyface reaction. People don't care to see him win the World Title at Wrestlemania. He's had his big Title win moment already, and they are not going to be able to build up Reigns vs. HHH for the World Title into a match people actually care about. It doesn't matter what bells and whistles they add on, at the end of the day seeing Roman Reigns regain the World Title is not a captivating driving force behind a Wrestlemania main event. It's not a big moment people are really clamouring for. There isn't that strong emotional investment you need.
So here's what I'm proposing. We know that the entire Wyatt Family is going to come out and destroy Brock Lesnar during this match, and that's fine. Is there a better opponent for Lesnar at this year's Mania? Probably. But this is clearly what they're going with. Lesnar hits the F5 and goes for the pin on Ambrose. Ambrose kicks out. Lesnar gets pissed and suplexes the shit out of the referee. Lesnar hits an F5 on Reigns, another ref comes down. Reigns kicks out. Lesnar suplexes the shit out of the second referee. Then the lights go out and here comes the Wyatt Family. 4 on 1, the Wyatts destroy Lesnar, I mean absolutely and completely destroy him. They need the heat. Reigns and Ambrose both crawl to the cover. The two semi-conscious referees each make the count for the win. One ref awards it to Reigns, the other awards it to Ambrose. It's a Dusty finish, kids.
This leads us to Wrestlemania. We now have two #1 contenders, the so-called "brothers" Reigns and Ambrose. Obviously Triple H is not interested in defending his belt against two guys, so he announces that Reigns and Ambrose will go one-on-one with the winner facing him in the main event at Wrestlemania. He also announces that the match between Reigns and Ambrose will take place at Wrestlemania. This is a perfect heel move for Triple H to pull, and it creates a bit more intrigue at Wrestlemania. In the build to the big night we see Reigns and Ambrose feuding with Triple H and the Authoirty, but with tension building between them as well.
So at Wrestlemania it's Ambrose vs. Reigns. Reigns has Ambrose down and calls for the spear, but Ambrose dodges it at the last second and catches Reigns with a rollup. Ambrose shocks the world by getting the win on Reigns, and he will challenge Triple H for the World Title. Compeltely exhausted from his war with Roman Reigns, Ambrose barely pulls himself to his feet in the ring when Triple H's music hits. The World Title match begins immediately. Ambrose is perfect in the role of the underdog and this would be a classic underdog scenario to put him in. He's a guy the fans legitimately like, he has history with Triple H from the Rumble where they teased an Ambrose win, and he's a guy who's never had that World Title win moment. So Ambrose overcomes the odds and hits the double arm DDT on Triple H to win the World Title and send the crowd into a fucking frenzy. After the match as he's holding up the gold he gets SPEARED out of nowhere by Roman Reigns. Reigns is now the most hated man in the company and Ambrose is positioned as the ultimate never say die babyface.
You have a money feud going forward.