Yeah I agree, it doesn't really make much sense. I tried asking about it (honestly) once, got the old "that's stuff you shouldn't be thinking about" answer.
Maybe God does already know what's going to happen but doesn't do anything to correct it. That would make more sense to me, if I were a religious person.
A bit off topic, I remember that one thread (non-religious) that argued we had no free will, I remember the OP had a point. It was a cool way of looking at things at the very least.