paman, I'm afraid you're guilty to what you tell others not to do...
i.e. Calling a main London airport a field in the middle of nowhere. Heathrow isn't, Gatwick isn't, Stansted isn't, Luton isn't, Southend isn't, Oxford however...
Anyway you get my point. They're all connected. Stansted and Luton have to be connected to ensure passengers as they are both a significant distance from London - by consequence they have good train/coach services.