"Look at SYD-MEL dinner services, we carry 1 or 2 extra crew (depending on AC type) anyway to get the service done in time. Inflight service will be amended to be do-able safely and timely so from my point of view it's no problem"
Yes... SYD-BNE B763ER, they carry two extra crew but they spent lots of time talking at the back of the last seat row. lol
I don't see 1 extra crew on B738 between SYD-BNE during dinner services. I remember our plane was full. After they finished serve the meals to the pax, then went back to the first first row of Y to collect the trays and rubbish. They still have lots of time to clean up everything before descending.