There are two ways that the WWE Championship works- it can either elevate a performer or it can be elevated by the performer. Someone like Jinder Mahal needed the WWE Championship to ascend to the next level and get a reaction.
But if you look at someone like Roman Reigns, he's already been the top star of WWE for many years now and therefore, always gets a reaction from the crowd. Moreover, he's in a program with Vince and Shane McMahon, two men who always get a reaction.
Therefore, I would go as far as to say that Roman Reigns does not need the title for now and Kofi Kingston needs it a lot more than The Big Dog. Therefore, the WWE Championship picture is ideal with regard to how things should ideally be.
I know that nobody's complaining about Reigns not being Champion right now.