Well, if Zanz is going to nerf cards just because they get used often (FFQ, Hourglass, Druid, and Otyugh all come to mind) -- he should follow the same logic backwards. Right now, Water doesn't do ANYTHING well. Fire both rushes AND stalls better; almost every other element rushes better (even Time will once GotP goes live!); Aether, Light, Life, and Earth all stall better, Time and Death both poison better; and no other element has as many different other elements that it's codependent on, which makes Water deckbuilding in anything other than Wetbow a very limited experience.
No, I'm afraid that Water really is simply objectively lame compared to every other element at the moment.