I too couldn't care less about the technology, but MEL-PER frequently drops out over the Bight - one would hope that the roaming capability onto alternate satellites can be retrofitted to the domestic fleet (and that Qantas pay for it). My experience on recent flights has been mixed, obviously contingent on the number of pax onboard (MEL-SIN in particular struggling given the late afternoon timing and presumably everyone being online).
Qantas have offered some form of airborne communications for customers since (at least) 2016 however - flying back from LAX, my then boss asked the CSM if there was any way of getting the current footy scores for a WCE game. About 20 minutes later he returned with a printout from the flight deck with goals and points for the first three quarters.