If we want a 24/7 service from any regulator the end user must be prepared to pay for it. The end users aren't the pilots, LAMEs and ATCs, they are the fare paying passengers by large.
Go down to your local pub and ask a few patrons if they would be happy to cough up another 50 bucks on their elcheapo airline ticket to cover CASA's 24/7 service. I'm sure most punters would welcome the proposal 😄
Enough said lets move on.......