Forget the one-punch thing, the worst thing about those was the fact that Diana, suppossedly a tactical genius and Warrior Woman extraodinaire, decided the best strategy to fight and infectious Super-Zombie that infects via blood was to... Grab a sword and stab him and cut him. A lot. And I could have bought it if at least the story presented it as Diana being desperate and not thinking clearly, the the narration tried to pretend "it was the only way".