Im with you on this one also Dick,
I was leaving PH the other week and needed to amend my plan, P&CD advised me my plan didnt have a return leg, some type of glitch through champagne into Naips, so i asked them to ammend my plan, they said stand by, contacted me about 5 mins later telling me to ammend through flightwatch. Couldnt get them on ground with VHF so used HF...
Also what about all the Training aeroplanes in the southwest from JT doing diversion prac, there are swarms of them down there, are they going to be jamming MC with div prac?
What about remote areas in WA where you can't get ATC be in MC or BC on VHF? I could never raise Flightwatch in the Kimberley and often used BC, which at times was pretty busy, imagine if everyone is using ATC instead.
Things to ponder.