AHS: But seriously, what about Zoe's Evil Vagina?

[Maybe spoilers, don't read on if you're one of those people that thinks tiny insignificant details are spoilers] Last night's finale was full of awful and wonderful things ("BALENCIAGA!!!"), but I can't go on without asking the question: what's up with Zoe's man-killing vagina, and why did they completely forget about it for the rest of the season?

Seriously, remember this?

AHS: But seriously, what about Zoe's Evil Vagina?

Zoe Sex = Dead Guys. But why even put this in if they're just never going to bring it up again? Also, are we supposed to think that because her boyfriend is a zombie-puppy, this is irrelevant now? Ryan Murphy! Learn how to create a coherent story!

(All criticism is enveloped in a shameful wrapping of unshakable devotion to this horrible show).