George Romero thinks so. I agree that World War Z was a bloated mess(Is there nothing Brad Pitt can’t do?) but the Walking dead has showed us some really interesting sociological dynamics, and a range of acting that has rarely been seen in the horror genre.
Is it becoming over exposed ?Absolutely. I think it is also a sign of the times. Ever go to the mall anymore? Tell me Zombies don’t walk the earth right now. Hell, Romero predicted that himself in his own movies. Read on Folks……
http://www.vanityfair.com/hollywood/2016/10/brad-pitt-the-walking-dead-zombies