OP
FWIW, the Cayman Islands Department of Environment posted its report on one of those prior incidents - the damage from the anchor of the Carnival Magic. Read their report here: http://www.doe.ky/wp-content/uploads/2015/03/Carnival-Magic-Anchor-Damage-Report-Public.pdf
Significant quotes:
"Bodden Shipping agent <name redacted>, confirmed the ship had requested an alternative anchorage to the one assigned by the Port Authority due to prevailing weather conditions and that the Port Pilot, provided by Bodden Shipping,
had attempted to anchor the ship in a ‘sand patch’ south of Anchorage Number 4 to accommodate this request.
"The Carnival Magic was anchored outside the designated ‘Port Anchorage Area'."
Significant quotes:
"Bodden Shipping agent <name redacted>, confirmed the ship had requested an alternative anchorage to the one assigned by the Port Authority due to prevailing weather conditions and that the Port Pilot, provided by Bodden Shipping,
had attempted to anchor the ship in a ‘sand patch’ south of Anchorage Number 4 to accommodate this request.
"The Carnival Magic was anchored outside the designated ‘Port Anchorage Area'."