Should end the brand split: Casual fans are confused
Comic book fans, we're going to use you as an analogy to explain why both the WWE brand split and the Justice League movie failed. Both properties failed because the casual fans in the audience were confused.
Specifically, the term casual fan means someone who likes an entertainment brand -- sort of. For example, while comic book fans can quote scripture and verse about the characters in the Avengers -- did you know Jarvis was a human being in the comics?--the casual moviegoer is going to ask infuriating questions like "Why aren't Batman and Superman on the Avengers?"
Will John Cena beat Ric Flair's record? A former WCW Champion thinks so HERE
Casual fans don't know every nuance of what they're viewing is based upon. A casual moviegoer is confused by the concept of two different super teams--the Avengers and Justice League--so much that they didn't bite on the latter.
Likewise, the casual wrestling fan doesn't know who invented the moonsault--it was Mando Guerrero, not the Great Muta, by the way -- but they still tune in to see big names like John Cena, the Rock, Hulk Hogan and Roman Reigns. The idea of two different brands of wrestling confuses them because they don't know why Roman Reigns isn't fighting Shinsuke Nakamura.
In short, the brand split confuses casual fans and acts as a barrier to new ones.