Looking at this objectively, here is the timeline:
-Big storyline of the summer is supposed to be Punk and MJF feuding over the title
-Punk gets injured when he gets the strap and they ready to pop off the MJF feud again
-Moxley is chosen as placeholder
-MJF put on ice to save him for when Punk comes back
-Punk is back, and while the plans have lagged, you can still have Punk leaving All Out with the belt again, and can go into MJF in the fall
-Moxley doesn't want to pass the belt back to Punk without getting a win first, tries to politic a Rocky rematch idea, with only 3 weeks of build, and Punk wanting to fully rest up until the PPV.
-TK says they're doing it, so Punk does it, despite making no sense.
Moxley should have done business, needed to realize he was place holding for a bigger angle between 2 hotter wrestlers. There was no need for the squash, Mox didn't need it, took major shine off Punk's return, which takes shine off Punk and MJF. Got blessed with rehab and a title run he wasn't scheduled for, all while working without an extension. "I'm bending over in this situation" breh no you weren't, see the bigger picture. It was always supposed be Punk holding in the Summer and the big feud was with MJF.
Further proof of TK being a shytty booker, letting the wrestlers run shyt with their goofy Hulk Hogan creative control pitches.