I see a lot of raids when I am reviewing Realm Players, that very very very few if any hunters utilize a pet on bosses.
I have seen one pet actively used and was pushing about 34-45 dps a second depending on the boss. While this doesn't seem like a lot, adding this hunters pet DPS put his raid total from 15th overall to 11th.
So my question is, why is this not utilized more? Set bonuses clearly support the pet in attempt to limit the splash damage taken and increase EHP, and with key binding attack/follow you should be able to move the pet in and out with anticipation of splash damage/boss mechanics for those who try to min max.
Besides, what else are you doing between Aim/Multi and auto attack watching.