They aren’t short of bugs and can order more.
Measwhile the USN has a massive deficit in SSN subs which will only get worse. They are working desperately to try and increase production of the Virginia class from 2 to 3 a year and are looking at ordering an extra 10 block V/VI at the expense of pushing the building of the SSNX Seawolf replacement hunter-killer to the right.
Not saying it can’t be done - but it would be a very hard sell in Congress. More chance of getting few forward based in Australia with some exchange crew to get used to working with nuclear subs - and the locals used to them.