I think we might be pinning something on GCT that is not their fault.
Ngaire, I may be wrong but isn't it with Ft Lauderdale that you negotiate venues for groups in advance? Also, once on the ship, isn't it the Hotel Director and/or the Cruise Director that makes decisions on assigning rooms for group functions?
We have all known that RSSC really tries to go after groups, either whole ship charters or partial. Many of us have reported sailings cancelled that were chartered. This happened long before GCT was around and on other ships beyond PG. As Anne noted, it is just more noticeable on a small ship.