The Rock was a goofy bastard, HBK was regularly a goofy bastard, even Austin spent a good chunk of his time as a different kind of goofy bastard. Kofi's been presented as a far more serious character in the build up to, and since winning the title. Hogan was shite, and almost all wrestling from his era on top was shite.
Jinder was actually a failed experiment, but in another post you're calling Kofi a failed experiment. You seem really bitter about it for no reason.
I'm not a massive fan of the "give it to the veteran" thing, but it's actually not been a bad run. He'll drop it soon, sure, but they're certainly not trying to make him the next face of the company, and it's certainly been a less boring reign than the abomination that was Jinder's poorly booked mess.
I just don't get this bollocks about "realistic" champions. Like, you're watching wrestling. If you want realism watch MMA.