''Only idiots believe hype''
Have you ever watched anything outside of Naruto or AgK? If you have, you would have noticed that many authors can hype things up and make the things live up to their hype. So no. Not only idiots believe in hype. It's just that this author is so incapable of keeping power level consistencies and gives out false information every time it's not related to his waifu, Esdeath. In fact, the same people who hyped up Esdeath also hyped up Budo. One of them lived up to the hype. The other didn't because ''lol fuk u, Esdeath is my waifu, not Budo''.
The fact that this author hypes shit up, but kills said thing in a time span of one or two panels without creating a proper fight to at least give some shine time to the character since he hyped them up shows you that this author is completely incompetent in writting and doesn't know how to keep power levels consistent.
This author is a hack and the matter of power level inconsistencies is a relatively minor problem. Not a single good thing could be picked out of this manga that could be called good writting in any shape or form and that's not even exaggerating it.