User blog comment:900bv/The Zombies Storyline: Suddenly Interesting/@comment-3967954-20130707140823/@comment-1045586-20130707144851

I would assume that they are being toyed with by the Aether spirits. The zombies in MoTD have yellow eyes, which are the eyes that the zombies when Maxis is in control. I wouldn't know if that's what they are implying, but they better be, otherwise the yellow eyes situation makes no bloody sense.