#2 They were told to give WWE "3 months so things could change"
This goes back to the rumours of The Revival leaving WWE, but with a little more detail. The word going around was that when The Revival allegedly put in their requests to be released, WWE told The Revival to give them three months so that they could see things would change.
This is likely one of the reasons why they decided to change the titles. Granted that the title doesn't change hands so quickly like it usually does, The Revival might have a chance to walk into WrestleMania 35 as RAW Tag Team Champions.
There are certainly few better rewards than walking into the Grandest Stage of Them All as the title holders, and that alone may convince The Revival to change their minds and stay in WWE. It's going to be interesting to see how their title reign plays out.