#9 Not repeat anything like the whole CM Punk saga
CM Punk left WWE in January 2014, after the Royal Rumble event. Even after more than five years of his departure, it's not very uncommon to listen to "CM PUNK" chants from the crowd, especially if the shows are in Chicago, Punk's home town.
The whole CM Punk saga was, to be honest, one of the most controversial things in the history of WWE. The fact that Punk was fired on his wedding day made it even worse, as fans did not take this too nicely.
While it can be argued that WWE is not doing that bad without Punk, but the fact is that the amount of negative publicity that WWE had to face, as well as the huge amount of money due to all the Lawsuits and all, was something WWE and Mr. McMahon would have wanted to avoid.
2 more stars coming from AEW to WWE? More details right here