I'm confused about banned words

So I was trying to play Play Wild as Twisted Wonderland characters and discovered a few things.

Allowed: Jamil Kalim TWST

Not allowed: Shyeeheehee Shyee Ruggie Feliform

Why, of all things, is FELIFORM banned?! It means "resembling a cat", and is a word that describes hyenas, mongooses, and civets(among many other things).