Sorry but if realistic figures supporting a near equivalent benefit from an expanded Gatwick had credibility given that not one airline I know has publically called for LGW to be expanded over a constrained LHR, then LGW would have won! Genuinely, if LGW had an equivalent benefit, it would not have been passed over twice on favour of LHR in the last ten years by a Labour then a Tory govt.
We all love a good story but come off it.....