So, you know, I think people just don't know how to play Zoe.
Like, sure, her waveclear sucks, so I appreciate that buff coming to it... but I've been doing really well with Zoe lately, even after all her nerfs.
So, I think people just don't know how to play her to her full potential, and instead rely on the E>Q snipe one shot too much. Try playing her like LeBlanc or Fizz, and go in for a quick trade then back out, and don't rely so much on the E>Q snipe -- it's more like a finishing move or something to scare someone out of a teamfight (though you can kill with it if you're fed).
I think the buffs are in the right direction, but I don't want her to become considered "broken" again (even though she never was) and permabanned, since she's easily one of my favorite champs now. >.>
She's just a higher skillfloor / skillcap champ, and there's nothing wrong with that. So, even if her winrate doesn't go up a lot with this next patch, don't keep buffing her. I think she's fine where she is, though a little bump to her waveclear would certainly be nice.