Furphy argument!
It is no different from GA to RAA. There are a few types in RAA who hide behind the known outcome of AVDATA attempting to gain access to the RAA register...no different to the lowlifes in GA who use someone elses call sign or no calls at all to avoid the AVDATA tape recorder...wouldn't be surprised if it is the same pilots in either a GA or RAA machine every time. Possibly those same people who resist any form of surveillence to be fitted to RAA aircraft, either transponder powered by SSR or ADS-B. (Personally, AVDATA is a blunderbus approach and easily bypassed by crooks...there are better ways of collecting data.)
It would take nothing to produce a document as part of RAA registration giving authority to RAA to provide confidential information to Airservices for charging purposes as part of the annual registration process...It could be a simple electronic transfer exercise that provides that database to AirServices that ONLY these registered aircraft are allowed into CTA. Flightplans, NAIPS and TAAATS are still the gatekeepers. No rego on the database=no entry, simple!
As the Jaba has pointed out, there should be no difference between a RAA pilot or GA pilot in CTR....the training and performance MUST be to the same standard.
Right now, the director sees that this is not possible, directly related to the experiences personally witnessed by himself. That attitude can be changed by demonstration. How long depends on the RAA administration to get their own nest in order and try again down the track.