It’s a fire bombing machine not a passenger transport vessel.
Plenty of GA charters ferrying everyone around inland. Most just fly airline ops. I had a group of 40 a few weeks back ML-SY.
Its usually easier to put to put them on airline ops. Melbourne to Sydney flight every 15/30mins.
Who should be moving them about is the Air Force with all these big A330s that sit around doing sweet F All. Too much procedural military bull$hit makes it easier to dump them on a loco.