Quite possible. Right now, I'm guessing it's a combination of that and simply a general lack of axes available in KoS (At least when compared to the ridiculous number of swords)
I'm pretty sure the Aviak quest series being Zerker/Guardian only is a mistake now, probably for the same reason that the NPC-Sold ones are wrong.
Can anyone confirm that crafted axes are usable? (Not sure if we even have a weaponsmith making any T7 axes yet on Test)