#3 Safer environment
Despite the risks that WWE performers take every time they step through the ropes, it's not as dangerous as facing an opponent in the octagon who is baying for your blood. Each hit from a trained fighter can not only shatter you physically but emotionally as well.
Emulating a fight has its own share of risks for sure, but all in all, it's a much safer environment inside the ring than inside the accursed octagon.
A female WWE star said her life is in danger. Details HERE
Granted, there have been many examples of shoot fighting in WWE.
The Brawl For All Tournament of the 90s that pitted wrestlers in actual fights is one example. As is the usage of ‘strong style’ by Shinsuke Nakamura that dismantled workers like Austin Aries and Samoa Joe. However, they too pale in comparison to some MMA bloodbaths.