I have no idea why the meeja repeat the nonsense about UK plc not having enough flights to various cities in China, Brazil and so on.
The media in general does not possess the necessary critical faculties that would allow it to question what it's told by the
PR agencies on behalf of the players involved.
China and Brazil are irrelevant as far as the airlines and the airport operator are concerned - their responsibility is simply to maximise value for their shareholders, and if that's better done with flights to the Caribbean rather than to the Far East then that's what will happen.
But red herrings makes good press.