"Apparently darwin - cooinda - darwin is about 2.5 hrs. Tabs is about 4 hrs.
How about you join those dots."
Darwin-Cooinder-Darwin would be a pretty sad scenic Miss B. Not much to see on that one, however, if you carry on a bit further and have a look at the falls and the odd weird shaped rock on the escarpment then tourists will have something to look at. When you've finished looking at all that , check your fuel state, if there is a bit of weather in Darwin, an inter perhaps,....well, join those dots.
"Maybe instead of all this speculation we should wait and see the result of the investigation."
Speculation on this forum is interesting and educational , it hurts nobody and makes a few people think about different possibilities. It's a particularly good tool for less experienced GA pilots who are learning their trade.