Sailed the Anthem of the Seas twice during the time between Thanksgiving and Christmas in both 2016 and 2017. Didn't ask for the passenger count, but the ship certainly wasn't empty. "Behomoths"....like the Mardi Gras which you sailed a few times? Anthem is smaller with a far lower passenger max than
Mardi Gras. The Oasis has the same passenger count capacity as Mardi Gras but is 45,000 Gross Tonnes bigger. The space-to-passenger number for those RCL ships are vastly better than the Excel AND Vista class.
As an aside, why is it that Carnival doesn't have an issue with sailing a ship out of Baltimore year round?