In the las raid with my guild i was rolling as feral dps, Oathbinder, Charge of the Ranger-General (LK polearm) dropped then hunters were rolling for it too and in my opinion feral should get prio, as the crossbow for hunters cause they attack with it, using that same logic i think feral should get it over hunters.
I have doubts about it, so i just want to make sure
If it was not specifically made clear that one class has priority over another for some specific item - then no, it's free to go to retri/hunt/feral.
But if your guild has some weird "if you attack with it" rule, how would we know, talk to leader or officer.
When we are talking about Guilds, it's internal thing, what anyone says here on forums is 100% irrelevant and has 0 meaning or weight. Guild master will decide ultimately.