Are cruisers right to whinge over lost New Caledonia ports?

Pacific Adventure cruise ship

P&O online forums have been rife with debate, after the conflict in New Caledonia has led to the rescheduling of several cruises. Many cruisers are complaining of having cruises over inflated with sea days due to the ports not being replaced with alternatives, as well as other complaints, such as the port taxes not being refunded from the cruise fare.Â