Love how you have stuck to your original idea on flying and not backflipped. I think its a great change that will allow us to see more content and come across other players. The example they provided in the blue post on the front page is a perfect example. I really think this change is for the best and hopfully there will be no flying in Draenor throughout the whole expansion.
P.S To people who complain, "But whats the point in having my flying mounts if i cant use them, what a waste of time getting them.". They will still be usable just they will run, not fly