I was about to write the same thing.
The movie showed an "enemy" jet that eerily resembled a J-10.. must be a serious coincidence.
Don't know why they're worried about us but it is always good to be prepared against the Communists.. the Chinese ones have this weird habit of jumping out of the blue and start claiming land, sun, sea, stars and whatever they can see with their eyes, further justifying it with fabricated history.
The explanation to claim Australia would be something like LMao's great great great-great great grandfather was the first one to explore the continent before the British arrived there or something.
Well it doesn't really matter much because even if this is to extract more money for the F-35s, it won't pose any threat to anyone as Australia's geographic location is far off from any conflict zone or disputes.