Most operators have figured that the PTL is not enforced so they just depart anyway. Some have done the right thing and delayed their departure for 40 mins only to cop another 30min delay airborne are are not happy about it so next time they just depart and take a chance.
Exactly why the system will never work in its current form.
Just everyone remember, especially as it's going to get much much worse that the situation is neither the ATCer nor the Pilots' fault. No one is Right and no one is Wrong.
The blame sits squarely at the government for privatising the airport and allowing Pearce to exist this side of Learmonth; WAC for being grossly incompetent and near sighted and Airnoservices for being.....well.....all of the above.
The economy and state will suffer but those responsible will be long gone!
This is not going to change until someone starts loosing a lot of money.
Until then, we just have to show understanding on both sides.