#3. It's going to main event Money in the Bank

If you think about it, the Universal title match between Seth Rollins and AJ Styles is basically the biggest and best MITB main event since 2016, where Rollins challenged (and defeated) Roman Reigns for the WWE Championship.
That night in 2016 was special in its own way, but the point here is that the past two years have had very average main events, with Baron Corbin and Braun Strowman both winning the MITB briefcases (and both also failing the cash-in).
This time, it doesn't need to be an MITB match main eventing the PPV. The Universal title match is the biggest one on the show and ideally, should be the one going on last.
Given the intensity of the segment, it seems very clear now that it's being treated as the main event match. We couldn't be more excited about it!