The current Labor government is trying to project an image of competence: we are aware of the situation and are managing it responsibly, including with representations to the PRC regarding notification practices for live fire exercises. The ADF is mostly aligned with these objectives. As such, the great majority of official comment in this regard has been directed to "turning down the temperature" on the subject, chiefly by emphasizing that the PLAN task force is operating within international law and that it is being robustly surveilled by Australian and New Zealand assets.
Sounds like the ruling Labor government in Australia would like to de-escalate, at least to some degree, with Beijing, if for nothing else so they wouldn't look weak to domestic audiences.
So is Beijing unaware of Labor's considerations, or has domestic or otherwise internal constraints forced Beijing's hand, even though it was almost certainly understood in advance that the Coalition and their partners in media would sensationalize the matter?
Conversely, the political opposition, led by Peter Dutton as head of the Liberal Party in coalition with the National Party ("the Coalition"), is seeking to portray the Labor government as both in its dealings with China: why were there conflicting accounts given regarding the timing and nature of the notification of live-fire exercises? Why weren't we in a position to clearly verify those exercises ourselves? Why hasn't the Prime Minister threatened to punch Xi Jinping in the face over this outrage to Australia's national honour?, etc. Australia is in the lead-up to an election to be held a few months from now, and the Coalition is seeking to portray the incumbent Labor government as weak on matters of national security, a narrative that right-wing parties push in relation to left-wing parties the world over.
Perhaps if Mr. Dutton in particular or the Coalition in general are anything like Mr. Trump or his MAGA base, respectively, then it may indeed be sensible for Beijing to provide a premise or two that will conveniently frame their opponents at Labor in a bad light ahead of Australian federal elections.