Problem with that is hunter spells like arcane shot and serpent sting all scale from spell power. So its just a auto attack spec unless blizz adds a rune to change aecane shot and serpent into a new spell that scales.
Thats why arcane shot does like 3 to 4% of total damage. 70 to 80% of hunter damage is auto attacks and pet damage. Thats why its so easy. You can just afk and do good damage