#2 A major stereotype looming in the horizon for Balor

Finn Balor won his first Universal Championship against Seth Rollins at SummerSlam 2016 using his alter ego the Demon King. The alternate personality is a convenient way to show him as a potential threat to Lashley's title reign at WrestleMania 35.
The Demon King never lost a match in the main roster. Whenever Balor portrays that gimmick he is displayed as a superhuman. He looks more strong and aggressive. Thus, WWE may likely have a contest between the Demon King and Bobby Lashley at WrestleMania. The Demon King is capable of defeating The Almighty Lashley.
However, there is a problem with that storytelling. Finn Balor utilizing the Demon King at WrestleMania would be like a move of desperation. It would appear that the normal Finn Balor is not strong enough to defeat Lashley.
Balor winning as the Demon King would attach a stereotype to him. It would make the normal Finn Balor as a superstar not good enough to win big matches. The Superhero/weakling kind of character would not suit Balor in the long run. Especially if he wishes to be a top guy.