The reason it's garbage is literally because it is just revenge porn. And not even the good kind. Like, we get it, the MC is pissed and wants to rape back whoever raped him. The show has no real substance. I can tell you the plot of the show in one single sentence, which will be "MC wants revenge." That's it. Nothing special about the show that has not been done before.

redo of healer somehow has a dryer MC than goblin slayer. And they didn't even intend it. At least in Goblin slayer the side characters make up for the lack of dialogue from the MC. But in redo of healer, they are all garbage people in a garbage world. Only good thing about redo of healer was the cock slap lmao