So you... hate the game because it doesn't play like another game in a genre? You think that the parry system isn't as good as a block? Well, if anything I think it's more useful than any standard block in any hack and slash or beat 'em up I've ever played, a simple flick of the stick and if you don't instant kill an enemy out of it, you block it without taking any damage at all.
If you don't like because of the way it's designed, despite it being designed a certain way with certain moves integral to the completion of the game, despite those design choices working flawlessly, that hardly makes it a bad game.