Yes, I thought he meant "Walking dead" as a synecdoche for zombies too. I was referring to the fact that even though something is played out, it can still be popular.
Thanks Frobisher. I'm super passionate about the idea and having a blast writing it. I usually don't worry about market trends. It's just weird to be having so much fun ADDING to a trend I'm kind of getting sick of. Brainnnssssssss