SailSafe and Ticket Contract are in conflict. The above from SailSafe is vague. I just downloaded the following from the Oceania website. It is part of the "current" Ticket Contract.
"Known or Suspected COVID-19 Case After Boarding. You further understand and agree that if, after boarding, and even if You have fully complied with all COVID-19 Policies and Procedures, You test positive for COVID-19 or exhibits signs or symptoms of COVID-19, We may disembark, refuse re-boarding after a shore excursion, or quarantine You as well as members of Your travelling party, or take other steps which We determine, in Our sole discretion, are necessary under the circumstances to protect the health and well-being of others. Under these circumstances, if You have a known or suspected case of infection with COVID-19 and You are disembarked, refused re-boarding, or quarantined, You shall be entitled to a prorated future cruise credit for the unused portion of the Cruise Fare or if required by law, a prorated refund for the unused portion of the Cruise Fare. You are responsible for all other related costs and fines, including without limitation travel expense. Under no circumstances shall We be liable to You for any other costs, damages or expenses whatsoever incurred by You."
Looks like FCC might still be possible.