... no alternate required...
Yes. Australia has a really stupid rule where, if the weather is fine and beaut and ground facilities suitable, the pilot in command can use his head about what fuel he carries. No need to spoon feed him as obviously happens elsewhere.
even the Kiwis up the road got CAT3 in AKL...
The last time I looked at Google Earth, Orkland is DOWN there, same level as Hobart with the same pooey weather.
Darwin light failure with no backup? Why am I not surprised?