And I take the exact opposite view, the oracle was full of shit. CPR doesn't heal death, and any prophecy that translates 'death' that loosely is absolutely useless(I saw it coming the first time I saw that Buffy episode, and I hated it. absolutely despised the device). Bruce is being kind of an ass here, but then again, he and the whole League were essentially taken out because Diana trusts a prophecy more than she trusts the League, which is something completely against Batman's belief system, one of the key tenets of which is that the future is not immutable. And he was right, because no one died.