Ferris, if the airlines had a staff shortage problem and continued to earn income by flying their planes with just one pilot where a two pilot crew was required, or not doing the required maintenance, CASA would quite clearly take action.
From what you are saying, Airservices has a safety deficiency but CASA is taking no action. I would tend to agree that is possible. The Office of Airspace Regulation does absolutely nothing. In the two years it has been in existence, I cannot think of any material change it has made. Someone will need to do something about this before more accidents (like the one at 2RN) happen.