Instead of that route, Snyder actually chops off any of the rough edges of the source material. The original ends with a bunch of bikers attacking the mall that the heroes are in, which leads to a lot of cool gore effects, but bites the face off of the movie's sense of pacing. It robs us of the intimate climax that Dawn Of The Dead could've built to. Snyder's version doesn't have that problem, as it's a horror/action film from the very beginning. Sure, it's not as satirical as the original, but it doesn't need to be. Snyder is not interested in creating a horror film that's also an allegory. The zombies don't have to represent anything. They can get by when they're just being spooky zombies. Constantly reminding me that "The real villain ... is man" is the best way to get me to hate both zombies and English teachers.
Sadly, Zack Snyder's next project would be 300, which had cool action scenes but was the movie equivalent of a guy whispering motivational quotes to himself in the mirror at the gym. And since then, all of his films have either been bloated epics or that thing about warrior owls. It's a shame. Because when Snyder makes films that aren't really about anything other than what's on screen, he shines.