Well i found out a slightly easier way to complete the quest, and you take no fall damage or anything.
Ok so take the quest and jump on the trampoline and land, BUT KEEP THE SLOW FALL BUFF.
Now there should be a hill net to the goblin, so get on your epic mount and position your self so your aiming straight at the nest while on the hill.
Now jump and wait until you are above the nest and you should dispell the buff right as you are above the nest (You should only be a few inches above the nest) so you take no fall damage.
And there ya go!
You can also be a mage or drink a noggenfogger for the buff