To be honest, I'd rather they fix the other problem, that of being handed better than +1 items just for getting though the tutorial. Make magic rare again, and you return ammunition to one of its niches. Enchanted ammo gets found typically before enchanted weapons, making it useful in tough fights.
The other niche, is still present. Its cheaper to lug around a wide range of ammunition for varying foes than a wide range of launchers for the same.