I completely forgot about that till you mentioned it.
I think he was lucky enough to survive as opposed to the Swedish Olof Palme (https://redsails.org/why-marxism/) who I'm pretty sure got assasinated by the US for going against the empire. If you read the accused summary bit at the top of the wiki article https://en.wikipedia.org/wiki/Assassination_of_Olof_Palme you can see how dodgy it all is and the state effectively deciding not to pursue it any further. That could have been potentially the Australian PM's fate if things turned out a different way.