Aero mad
I have no doubt what you say about LGW-Paris flights is correct but it does strike me as odd that BA ex LHR have multiple rotations, to both CDG and ORY some of which are operated by 767-300s.
There is also AF on the route, and I do appreciate that LHR has significantly more connecting lh passengers for BA than gatwick does. But could gatwick really not sustain a two or three times daily shuttle to Paris ?
If it's well timed it could well provide feed onto the BA longhaul network at gatwick and if operated into ORY could even supply feed for the openskies routes
Just my thoughts on it