So - unlike when they dropped our melee weapons between WotLK and Cata, when Legion hits, Survival Hunters are going to have a ranged weapon that they can't use.
They'll get their fancy new artifact fairly quickly - but you need something when you're on that first set of quests.
Is it 'ok' for Survival Hunters to roll on Polearm weapons in Hellfire? Definitely not 'need' them and even defer to someone who might use them as off spec - but if it's a choice of DE it, and let the hunter have it, then give it to the hunter?
Or do you think Blizzard would just give Survival Hunters a polearm on Legion launch day?