I think wall jumping is probably a punishable exploit. I don't see how it is really needed, I guess it would save you 4 trash packs, but again the bear mount run is doable in T4/T5 gear with a 2 healer setup with ease. This week we even wiped on Eagle just from not paying attention and still made the Bear Mount timer by 3.5 minutes (lost approximately 5 minutes due to the wipe).
WWS from the run:
Wow Web Stats
Was really happy with the 9K group dps on the bear boss.