I'm not one to cast doubt on someone spending money to make a go of a business but it really does seem strange that someone would want to fly from Lydd, it's not a huge metropolis.
It's miles away from the nearest train station, unless you make one on the track to the Nuclear Power station. And would airlines want to fly from there especially in these comercially risk averse times. they would rather go from DVT, BOH, LPL etc than Lydd