Old Akro, you and I have argued this before and I even showed you proof in the RAPAC minutes.
Airservices made no such commitment. What Airservices did do, was commit to investigating whether a training approach could be developed. But dont let the facts get in the way of you bitching about how you think you've been hard done by.
The result of those enquiries was to find that it is an offence to publish instrument approaches to anywhere other than a registered airport. CASA was not interested in pursuing the idea of an exemption, without which AsA hands were and are tied. It is unfortunate that the records show this issue was never raised at RAPAC again and so this answer never went back to RAPAC.
The records show no promise to deliver an approach was made, only to be investigated.
Before you arc up about the other training approaches, they were published pre revision of the current CASR173. They are currently being tolerated....but not for much longer.