And 8 subs that might not ever make it to Australia defend a coastline of 25.000km against the biggest navy in the world? With over half of it(and the important parts) are to shallow for nuclear subs to operate in?

Very possibly without US support because the orange got a wire transfer by Xi? Or another “cheque didn’t clear”?

And no, they won’t be able to limit the chinese navy go the south/east chinese sea - which are sea areas which again are hard for subs to operate in, especially hunt surface targets. And which are,by all means, very likely to be very very well guarded against subs via various installations. I would bet the chinese have something like SOSUS in place there - it’s their home turf after all that has far less ingress channels as the GIUK Gap.

So… tbh: While I don’t follow the conclusions of the author nuclear subs are still a bad idea.