It's really the latter. I know people will argue this, and I say this as someone that did enjoy World War Z, but Max Brooks isn't a great writer and has issues trying to fully explore a realistic take on WWZ and the shitshow that followed. Plenty of people have argued this, especially the Battle of Yonkers, but I did just attribute to the fact that Max Brooks was also trying to write an entertaining story...which he did accomplish. World War Z is a fun read. But if you ever asked me if its a great book, I'd fucking laugh.