Essendon has a lot of RFDS traffic which gets priority. Your corporate story doesn't ring true. Often when there is an easterly wind, 09 only will be the duty runway and controllers know how to use it. 09 departures with 16 as the duty runway and as busy as you said poses a number of problems.
Not only may there be Essendon traffic on RWY 17 but a 09 departure to Sydney will have to cross the tracks from New Zealand, Tasmania, Canberra and Sydney.
You can only cross RWY 16 on E TWY. With 16 only operations, the Dash 8s and many QANTAS 737s will vacate at E, the exit must be kept open.
Finally, if you were to get RWY09, you may be waiting a long time to cross RWY 16 when busy.
Bollocks.
1. Your arguments are departure based. None of this explains why 09 can't be used only for arrivals. Ie at least turboprops from the south and west.
2. QF can be directed to exit 16 at the high speed like every one else to keep Echo free for taxiing aircraft. Straw man argument.
3. Doesn't explain why you suddenly won't use 27 when there's a couple of knots downwind.
I've been told they won't do simultaneous ops on Rwy 09 and 16/34 because the tower position and height doesn't allow the tower controller to monitor both flight paths and runways. Or is that just another excuse?
Without a doubt the most inefficient traffic flow in Australia. Note I didn't say the most inefficient ATC, I guess they're just working within the constraints and procedures they are given.
Something needs to change.