While I believe wage and salary costs in Australia have got out of hand, my major focus is on the proposed 23.5 hours duty limit as that's what Mr Joyce at QFi is seeking.
Perhaps some QF pilots/FO sleep well on planes. However, I find sleeping for three hours at a time to be about what I can manage in J, but far less in whY.
Quality of sleep must be questionable, as there's too much light, passengers or staff walking past and sometimes mild turbulence. If one is near toilets, the flush is noisy, and passengers may use the adjacent area as somewhere to stand. Most of us won't be near the galley(s) but should we be, there'll be chit-chat plus preparation noise.
Even if pilots are sectioned off in their own 'mini cabin' up the front with two or one door(s) between them and passengers/other staff, one can't comprehend that they get excellent REM (if that's the term) sleep.
Compare aircraft to many trains. Latter I find quite easy to sleep in: several hours in a sleeping berth, or a couple of hours at a time in a seat, because the motion is more conducive to sleep, there tends to be less light and at night usually fewer individuals walking up or down the aisle, assuming it's a saloon not a compartment car. There are no seatbelts on trains (not required) while on aircraft, they are mandatory but can be an annoyance if one is someone who tosses and turns during sleep.
The pilots may not be required much these days because of so much automation, but if there's a problem, one would hope that they are fairly alert at a minimum. 20.5 hours since signing on, are they?
So no, I won't be on board any carrier that operates such lengthy flights. As a bonus, I like stopovers.