#3 They have feuded with almost all the tag teams and are stopping the progress of some teams
If you have been following SmackDown Live for the past few months, you might have observed that the tag team division of the blue brand is all about the Bar, the New Day and the Usos. But come Survivor Series, teams like the Club, the Colons and SAnitY all of a sudden join team SmackDown for the 10-on-10 tag team elimination match. The only problem I have here is why to ignore those tag teams the rest of the time and call them only when the numbers are required to be filled.
All of the above 3 tag teams are quite talented and if separated may not prosper in the singles division, unlike Sheamus and Cesaro. Also, the Bar has already feuded with the top tag teams of RAW and SD Live over the course of 2 years with SAnitY being the only exception. It would be better if the Bar is split and the original tag teams get the TV time they deserve.