Meh, I don't really see it as a 'furry' game. It's basically just a fantasy animal/creature rpg if you really want to call it something... Nothing more. Not all the players have their character with humanistic traits, nor do some have completely realistic to what species of what the character is supposed to be. Im personally not bothered with the title 'furry game' But I can see why people get offended by it, since the term furry in our modern day age isn't exactly in a positive light with everyone.
From what i've seen, most people associate furries with pornographic anthropomorphic fanart and dwelving into their fursona to the point where they dont know the difference between reality and fictional universes. Even though this is only a small group of extremists in the group that give them a bad reputation, newcomers will see this and automatically judge the game as such and existing users would be rather infuriated with whoever gave the name and attack them in defense.
Honesty, i think it's rather stupid to label something that's beautifully unique though. If you want to call it a furry game, then go ahead and do so though. *shrugs* I honestly dont care too much, though I myself will keep calling int feralheart.