Clearly the blame lies with Airservices, they need to build more airspace for us to fly in.
It is strange that all the FIFO companies keep telling their clients that they can have 0600-0630 departures out of PH and then end up having to explain why they are always late. Why not just stagger them? How about 0530 through to 0730?
The real pain is when only 21 or 03 or 24 or any single runway is in use, that really hurts. How about some right turns off 21 for the jets? I know, I know, noise...
