It won’t stay that way for long at all.
The average block hours for FOs (except MEL/SYD) is close to 75 hours. Skippers are all pretty close to to 80 in every base with many after a couple of standby call outs pushing 90. With roster balancing everyone needs to be within 6 hours of the average for the their base.
The reason for lower hours in SYD/MEL is most of the new hires are going there before bidding out around the network. So you could say they are slightly overstocked with FOs there.
It is also where a lot a lot of training happens.
What I can see from the numbers though is there will be a large amount of command upgrades very soon.
It’ll be back to 80+ in the coming busy period. So enjoy it while you can.