True, but a lot of things in satire also happen to be greatly exaggerated. Still, you're right about the wake-up call part, especially for the stuff that ISN'T greatly exaggerated.
Still, the whole zombie thing is nothing more than the stuff of fantasy, except for the "zombies" I've just described. It's also something that's been seeing another craze lately and I have no idea why. Same with the whole bacon thing.