This report from the ABC is reasonably balanced. They are getting an extra day in Freo. Here is an excerpt.
"Ms Fitzgerald said it was suspected the virus had been picked up somewhere in Australia.
"I think we have COVID everywhere in the community," she said.
"Cruise ships are really the only place now where we're actively managing with testing and tracing.
"I think if we were to test 100 per cent of people in WA right now, we would find a small number of COVID cases, just like we have on the cruise ship."
Due to rough weather, the ship is due to spend an extra night in Fremantle before departing on Saturday afternoon, stopping in WA's South West and Great Southern before heading to Adelaide."