Is this copyright stance unique to ASA, or do other aviation authorities eg. CAA-NZ CAA-UK do the same?
I don't quite see the problem from a pilot perspective. Apart from the aeronautical charts, virtually all aeronautical data is available either online via the ASA website [ERSA, DAP, DAH etc], or in hard copy format. In short, we can all still access the publications containing the data, AIC SUPs and NOTAMs, and in fact it is good to see ASA making electronic copies of the publications available online.
So I'm afraid I can't see how
Airservices Australia have therefore closed off access to accurate and timely electronic aviation data to pilots in Australia
or
this action will drive some private and sports aviators and others to use unofficial and possibly unreliable electronic data.