I can see Blizz taking this away from them but I don't agree with it, just because of their own way of thinking that they've stated in the past. When talking about multi-boxers they claim it to be fair because that option is available to everyone if they choose to go for it. Same thing here. Server changing is available to every single one of us. It may have an unintended effect but its one that has been known for a while and one that, in my eyes, was available to anybody that wanted to pursue it.
Props for having the balls to do it.