"Best in Show" quest broken!

This is an alliance quest requiring you to get 300 points by killing the zeppelins. Unfortunately the maximum number of points possible is just about 150. The guides I read say that you need to jump fences while waiting on the zeppelins to show up, doing so causes the score to be multiplied, thus making it possible. Jumping fences, however, DOES NOT multiply the score.

Am I doing something wrong or is this quest just broken?

edit:
I just watched a couple of videos on how to do the quest and it definitely isn’t working for me the way it worked in the video. What’s more, in the video, he is able to target the zeppelins without having to stop and hunt them down. He doesn’t even face them, he just fires the lasso, whereas, I have to stop, hunt for them, click on them, then fire. My tab key generally targets the next target, but it doesn’t work on the zeppelins. Can someone tell me how he managed to target them without even looking at them?

re-edit:
I’ve given up and abandoned the quest after about 40 tries. The quest is definitely broken.

probably targetted them using a macro. Create a macro with the body "target ", put it on your bars with a keybind that isn’t used by the quest mount, and using the keybind should activate the macro even while you’re on the quest mount. But if you’re not getting the buff from jumping the fences, yeah, it’s not going to be enough.