I'm probably in the minority but I'm more of a pick up and play kind of guy. It's cool to have the option but I don't want to have to spend the time to book everything for the Universe mode. I don't know why their games got away from it, but I would love a new age version of the No Mercy single player mode where everything is scripted for you but you get deep/real storylines where wins and loses have real implications on the rest of the game for your character. That had crazy replay value and was easy to pick up and play to kill some time.
With all the storage space available now, they should easily be able to expand the mode to be have hundreds or even thousands of different storyline events with no repetition. Hell they could even take 10-15 superstars (AJ, Bryan, Shield, New Day, Sasha, Bailey, Naomi, Charlotte, Asuka, etc) and make specific unique storylines that no one else has.