#5 No longer the land of the "big men"
After the introduction of NXT, WWE's strategy to hire new talent has changed quite significantly. Gone are the days when a wrestler had to be tall and look like he could kill you to qualify as a top-level Superstar.
Finn Balor, Seth Rollins and Kevin Owens have shown that WWE have gone in a different direction and like Superstars who are skilful, quick and acrobatic in the ring. The fans seem to love it too! It perhaps didn't seem legitimate and believable that Lesnar, one of the hardest men in the WWE and UFC, could be defeated by someone like Balor.
We could perhaps see a "smaller" champion rule the WWE now that Lesnar is set to leave.
Yes, Braun Strowman still deserves to be Universal Champion, but that's because he's athletically superior and quicker than most big men (maybe the beard helps, too).