Makes Australia's $50 million supply of mostly lethal aid to Ukraine all the more dangerous to them. I think Canada supplied some too.
Western countries that have similar values to NATO are being drawn in to give support but don't have any protection. It could come back to bite them.
If Putin decided to nuke Australia for interfering, then NATO would just say can't do anything because it would start WW3.
Putin would have to use a sub, and given his armed forces can't seemingly maintain a truck or 40 year old tank I'm betting it wouldn't make to the other side of the world undetected.
What's to stop Finland and Sweden joining NATO quickly?