As echoed by many on this thread, this news is most disturbing. The reality however, is O will forge ahead and play by their rules.
These unvaccinated passengers embarking, even with a negative Covid test result, need to be retested daily throughout the cruise. They are too vulnerable to contract Covid or any of its variants while visiting various ports and risk infecting all fellow passengers upon their return. It only takes 1 to ruin many vacations.
Oceania needs to keep everyone safe.