More players like Richard need to come out against it. I know Roger seems to be chaning his tune a bit, Richard is really the only person I've read that doesn't like it.
Things have changed a bit recently. I don't have the precise quotes, but Richard was heavily against in during summer when the idea was launched, he softend his tone recently, while Roger did the opposite. He seemed to go along in summer, and came out more clearly against it a few weeks ago.
Apart from the RR format, Aidelaide offers some advantages. You do the trip to down under once and then you can adapt, while Doha splits the trip (from Europe) and you have to get used again to a new environment.