I thought that in the advanced world of aviation in Aus that pilots are charged for every landing, maybe every radio call (connected?) so that it might be cheaper not to make those calls, and this might solve your problem.
More seriously I fly in the US and Canada and rarely make any calls while enroute VFR even if in Class E apart from Downwind and Final. If I have a transponder I am Squawking 1200 and if I have ADS-B it looks after me quite well.
If I want someone to know where I am in my flight plan, I tell Flight Service and they appreciate it but it is not required so they don't chase me.
I fly for the CAP and they require a contact every 30 minutes, which is a pain but it is their airplane so I do it and if I miss two calls they report me missing. Sometimes I have to climb to 13,000 feet or so to get through to Flight Service. It would seem to me that this would be a problem in Aus too, given the remoteness of the Outback?