Originally Posted by
Okacz
That's the problem. This achievement kind of fulfills the purpose of "do ALL the world content before being able to fly". And even after completing all these steps, you remain grounded. So in a way, you earned your flying, but still don't get it. And Blizzard just says you will get it... eventually, in some patch.
So this kind of proves that Blizzard is not really after making you earn flying (because what else do you want players to do to be able to fly in this particular area), but after making sure you get flying as late in the expansion as possible. Or not at all. I'd argue that this pathfinder might as well be a carrot on a stick for players really withing to be able to fly again, only to be turned down by Blizzard saying "we figured out that flying won't be needed in Legion, so part 3 of pathfinder will give you something else". They obviously don't want flying in the game, so they might do just that. And tho many people would be angry and betrayed, not that many would leave.