Agreed. One punch is turning from a tongue-in-cheek parody of the shounen genre into the very thing it used to satire.
It's got early stage simpsons syndrome. It's only things like that ending with the tickle machine and the guy losing his power by just losing his costume that are keeping this from being a full blown zombie simpsons.
Totally not like the previous chapter had the enemy powering up so much to the point where Emperor and Phoenix both acknowledged it was total bullshit.