Hello, me again.
Found this exploit on the Battleground forums here Demolisher SPRINT bug? - Forums - World of Warcraft. I don't play end game, so I can't test.
Copied from Nightmare's post:
"Druids using stampeding roar at the beginning of SoTA are making the demos literally sprint to the opposite side of the bg in mere seconds. It's amazing, and kind of sad at the same time, when you're melee"
Let me know how it works!