Just been reading that Carnival has a massively restricting CYA clause in their ticketing agreement that will basically stop cold any lawsuits that might come of this Triumph mess:

Carnival shall not be liable to the passenger for damages for emotional distress, mental suffering/anguish or psychological injury of any kind under any circumstances, except when such damages were caused by the negligence of Carnival and resulted from the same passenger sustaining actual physical injury, or having been at risk of actual physical injury, or when such damages are held to be intentionally inflicted by Carnival.