Standing corrected on the Part 61 wording: It doesn't specify 25nm from your home aerodrome, just the 'departure' aerodrome.
Strictly speaking, this could imply that 25nm hopping flights are permissible, although I imagine CASA will move to modify their wording when enough people complain of the ambiguity.
Reminds me of the whole 'flying without an ELT' debacle, where 50nm hops are okay, but >50nm is illegal without an ELT.