P&O Cruises has a large amount of seats blocked with VS on LHR to BGI giving their passengers a scheduled option out of LHR for the first time in addition to their fly cruise options from LGW and other regional airports using TUI.
I believe this is one of the reasons why VS LHR to BGI is now available in addition to the LGW flights.
VS have some spare slots at LHR and BGI is an excellent addition and with the commitment from P&O Cruises new route will be successful.