From reading this and other message boards, it seems that a lot of folks are complaining about Grand Cayman because it takes so long to get everyone tendered in. If the tide isn't right, it takes even longer. I've read some reviews where people are blaming Princess for this problem. Maybe they thought it was easier to just change ports.
I was in Grand Caymen several years ago on the Mercury. There were so many ships that we had to tender into a secondary location. That worked out okay, but getting back was terrible. The tide was out so the tenders could only carry half of their normal loads. We stood in the sun for more than an hour trying to get back to the ship.
Grand Princess - June 2006
Sea Princess – April 2000
Grand Princess – May 1999
HAL Maasdam – October 1998
Celebrity Mercury – April 1998
RCCL Song of America – March 1997
Carnival Sensation – March 1996
RCCL Monarch of the Seas – May 1994
NCL Seaward – April 1993
NCL Westward – April 1992
NCL Norway – May 1990