#2 More creative freedom

Dean Ambrose was one of the popular characters of WWE but Vince McMahon's billion dollar company failed to utilize him properly. Earlier, Ambrose's Lunatic Fringe gimmick garnered the attention of the WWE Universe. The character was unpredictable, which made him exciting. However, it was not the same after Ambrose returned from injury last year.
Ambrose turned heel on the same night Roman Reigns announced his ailment. Seth Rollins and Dean Ambrose also had a feud for the Intercontinental title. With the new look, the heel turn seemed like a great move, but Ambrose was not booked well.
Ambrose's character had no direction and he was cutting substandard promos every week. Ambrose became tedious to the fans, and poor booking could be blamed for his downfall. As a matter of fact, poor booking could be the one primary reason why Ambrose decided to leave WWE.
It could be different in AEW, and Moxley might enjoy more creative freedom. Being a top star of the new company, Moxley will get significant freedom to design his character.