These seats are not available for booking by partner airlines - hence why expertflyer still shows as U0 for all flightsAnyone looking to get tickets should do so as soon as possible.
Once the American bloggers publicise it, they will be all gone. Reward flights to/from Australia are highly prized by North Americans and they have tonnes of ways to easily earn QFF points (it is a transfer partner of Capital One, Amex and Chase).