No, I mean- the Score is accurate, but it's not the only path the world has to follow. Say two people were supposed to die because the Score said they would. But then one of them dies, and the other doesn't. The Score's right about the one, so their path in the Score is over. But the other is still alive, even though they've been written out of the Score because they were supposed to die. That means the prophecy isn't completely accurate.