#2 Vince McMahon's personal involvement in The Fiend's character
Tom Colohue of Sportskeeda had published a report back when Vince McMahon himself made a cameo in the WWE Firefly Fun House. The report dealt with how big a fan Vince McMahon was of The Fiend's character.
Mr. Colohue had spoken about how Vince McMahon is a fan of weird stuff like the Firefly Fun House. He had reported the following at the point:
"For the Firefly Funhouse, Vince McMahon has provided Bray Wyatt with writers, directors, extras, props and considerable airtime with which to shock and awe. He's even personally appeared, after a fashion, so you know how much both men want this to succeed."
It certainly checks out with regard to just how strongly The Fiend has been booked with him winning the Universal Championship in almost no time! Also, if you consider how many Curb Stomps he kicked out off, you'll know that Colohue was on the ball, as always. Mr. McMahon loves The Fiend and wants a long and illustrious reign for the weird supernatural being!