#1 50/50 booking
Its one of the things WWE is known for on their main rosters and once again it is the company's biggest problem when it comes to their weekly televsion product. Not only does 50/50 booking kill a superstar's momentum after a big win, it also taints the superstar in the eyes of The WWE Universe afterwards.
Maybe stars like John Cena, Roman Reigns, The Undertaker Seth Rollins and Dean Ambrose can take a loss and still be beloved by fans, but there are others like Finn Balor, Bobby Rhoode, and Baron Corbin who are always the victim of this. Its even gotten so bad that most of the above listed superstars have been relegated to the midcard.
Charlotte Flair to return and wrestle a CURRENT CHAMPION?
With that being said, 50/50 booking can be a great way to extend a few and is sometimes very uselful in other situations, but it is also a momentum killer when used at the wrong time on the wrong person. Unfortunately for majority of WWE superstars on the main roster right now, they know this all too well!