Am I being uncharitable when I think the original form was intentionally misleading?
The ABS "mesh blocks" seem to be fairly arbitrary and could be used to skew results for minor things like census and benefits allocation.
Of course, it's always a problem dealing with highly varying population densities (and gawd knows OZ has those) but there are potential solutions by presenting different ways at looking at these densities.
Here in the "States' we deal with this by having a couple of blokes representing various land masses (senators), and then many others that are elected by smaller gerrymandered landmasses (representatives). This is "democracy" in the Merkin way. Of course, the corporates determine all of this and the voting exercise is really just watching the puppet-masters.