joehunt, despite what Payscale says, from my (quite long) experience flying into Oz with EK, Wiley is correct. The Australians won't let the outbound crew past the departure lounge until the incoming crew have left the aircraft. (Payscale's right about the bridge being switched between Arrivals and Departure floors.)
On the few occasions when I've felt I've had to brief the outgoing captain on some technical issue with the aircraft, they've let me talk to him, but it's turned into an exercise that's pretty close to pulling teeth. Security, y'know.