The A345 was once hailed as the airline's flagship given its private suites in F, long range and being used on flagship destinations such as JFK and SYD. However with the introduction of the new 77W/77L interior with the new J product and its range capabilities the A345 has now been relegated to a secondary role with very similar characteristics to those of the A343 fleet.
Whilst this aircraft has a range of over 16 hours, the airline remains capable of extracting 13.5 hours of average daily utilization and 6.5 hours of average cycle times. I believe the A345 is being phased out eventually (but probably not as soon as the 332s) and hence has been moved away from segments for which is was designed, and it seems therefore that the airline is merely using this aircraft to fill its schedule rather than assigning it to the role it was designed for.