I understand what you mean but you can't say 'to have access' when in fact you do have 'access' albeit via a domestic flight to either LGW or LHR it's still 'access' but non the less I understand your point.
The same can be said to a certain extent regarding Air France and being Paris-centric all except for a few regional departure points it's mostly Paris so Paris Airways, I'm afraid that's how it is we're not like Germany where Lufthansa can maintain hubs at two airports as in Frankfurt and Munich.