Only if they got the A300 pay rates indexed for our pay rises since the aircraft was phased out.
Incidentally, my understanding was that the union aproached QF to put the 767 domestic fleet on the short haul award a bunch of years ago on the A300 rates. The company said 'no' because we were cheaper on the L/H rates at the time. That may not still be the case though!
Personally, the 767 still does enough international stuff to keep it on the long haul award. I wouldn't like to do the SIN trip I just did on the S/H award and even the Narita and long CGK trips wouldn't be pretty either- unless the pay rate was the A300 rate indexed!