This is a possible reason, but not completely accurate, in my opinion. "The Walking Dead" is a show about apocalypse survivors, not a zombie killing maniac. Perhaps people were also simply curious about how to survive an apocalypse (or just looking for good entertainment). Also, while zombie killing may be "uncomplicated" and repetitive, our lives aren't usually like that. We encounter challenges, and solve them either individually or in a group. I think the author got this aspect of his thesis wrong. Modern life may be like slaughtering zombies, but it's not as "uncomplicated" as he makes it sound.

The author implies that you will always be doing the same thing for your entire life, but this isn't really true. Unlike a zombie apocalypse in which the future seems really bleak, real life has many opportunities that come along: promotions, love, vacationing, retirement, etc. I think the author is overlooking the fact that not everybody works in a cubicle or does other boring and repetitive work. Not all 5.3 million people were, that's for sure. If people were relating to the show, it was because of the challenges faced by the survivors, not the onslaught of zombies.