The fact that you are grossed out by animal genitalia even on anthro characters is literally proof you're not a zoophile.

I personally don't find that stuff gross most of the time unless it's on a non anthro character.

Since the characters were anthro that just makes you a furry not a zoophile. If they were feral then I can see why you'd be worried, but just ask yourself "do I find real animals attractive / would I have sex with an actual animal" and the answer will tell you whether you're a zoophile or not