Can we please get back to basics.
Absolutely NO aircraft should be doing 1800'/min on approach - period.
Common sense will tell you that it should be around 800 - 900'/min.
Any so called captain that lets his aircraft do that rate of descent at that phase of flight should never be allowed near an aircraft.
An aircraft with that rate of descent and (as reported by the ATSB) with ALL flightdeck members looking outside simply reinforces to me (from past experience) that pilots from that region haven't the faintest idea how to fly non ILS approaches.
They had no idea what they were doing and were desperate to get visual.
Lets forget political correctness and tell it as it is.