Because these breathtaking resorts start booking 2 years in advance and sell out quickly, it would not be fair to those who book short-notice or even months in advance for prior restaurant reservations to be permitted.
As such, all dinner reservations are made in resort. Luxury-tier guests can make these at the culinary concierge desk, Club/Concierge-tier guests can do this with their in-resort concierge, and all dining requirements for Butler Elite guests are handled directly by their butler.