If you're in the 530s+ ilvl wise, go bm and really just zerg it with bloodlust. No problem.
If your ilvl is low, go for the balcony trick (yes, surprisingly there IS a guide on wowhead, just google the Yulon quest), fake death to drop ads, deterrence mirror images, and you can take your time with the dps.
"Beast Mastery: Impossible (...) the pet is slow (...) the damage is not useful to burst the ads down" This is just WRONG in so many ways. Have you heard of Blink Strikes, Dash, Beast Cleave? You want to make a guide, fine, but with this you're making it more difficult for others who might actually listen to you.