The only argument that people against flying seem to be able to come up with is that somehow giving a choice takes away their choice, but removing choice is how it should be, because that way they can play how they want and everyone is forced to play their way as well. I have yet to see any of them come up with an argument better than "Well if other people can fly, then I am forced to fly, or I would be gimped" but they then claim that the people who are pissed about being actually forced to play how they can't stand to play are whining.
What do you think their reaction would be if Blizzard said right now "We changed the no flying, and decided that you can ONLY fly in WoD" Does anyone actually believe that they wouldn't rage about it non-stop until the expansion?