The foxes of the recent snapshot are fantastic, don't get me wrong. But the issue that my friends and I often come across is the horrid screeching they emit when you aren't near them. It's something of a cross between a baby screaming and a pig, and for the longest time we thought some new mob was haunting us under our farm (there was nothing but dirt).
While I realize foxes do make the weirdest noises in the wild, I'd prefer not to hear what sounds like a phantom crying to us while I harvest wheat to make bread for my starving Minecraft family.
EDIT: I don't mean to say all of the noises that the foxes cause, but just specifically the squealing that occurs when you aren't in their proximity.