Covid is gonna breakout on those ships anyway IMO....no matter what they do.
That they “did all they could” won’t stop a greed lawyer.
But it might help more than "eh, we blew it off and didn't do anything."
If “did all they could do” reflected the guidelines published by a government agency tasked with administering health and safety rules for cruise ships, then the greedy lawyer isn’t likely to be very successful.