I'm reading too many instances of "engine failures are extremely rare occurrences" in a 12 month period where around 10 QF group aircraft have had shut downs, and that's just the ones I know about. What I'm seeing is that reporting of QF group engine failures is extremely rare and is kept out of the public view for some reason while claiming to be the safest airline in the world.
Was this a normal engine failure? was it possibly a reverser un-latching in flight? that would explain why both engines had reversers deployed and might warrant a "mayday" until its sorted out and then it's just a "Pan" once the engines secured, but who knows, we won't, as the ATSB will probably hide anything we could learn from any public scrutiny.