#3 One stacked division for WWE to book instead of two mediocre ones
While there are hardly a couple of interesting tag teams on both RAW and SmackDown, merging the two divisions together would double the strength of the roster. It would also slash the creative requirements for tag team wrestling in half. WWE has quite a few great teams, which could make up an excellent tag team roster.
The company has not give much attention to tag team wrestling in recent years. Handling one division and title scene might be too much for WWE as it is, so two is definitely a problem. It would be one less part of the show to worry about.
Charlotte Flair to return and wrestle a CURRENT CHAMPION?
A single division consisting of every WWE tag team would be excellent if given the time and effort by the company. They should do so by devoting the time spent in building teams on RAW and SmackDown towards a common champion. There are enough top tier tag teams for this idea to work.
WWE clearly cares about some tag teams more than they ever will about the division as a whole, with the New Day being prime examples in this regard. If the tag team division is unified, the 8-time Champions could use their star power to elevate the teams on either brand, instead of just SmackDown.