LGW crew had the nous (at the time) to see that they needed to adapt and change to survive in "their" market.
It wasn't quite like that! BA had them over a barrel. Either you accept change or we close you down! As a sweetener, any one who didn't want to stay on New Single fleet was promised the chance to transfer to LHR. Those that wanted to stay, gave up their old contract (I think there may have been a financial gain). In short, anyone at LGW now, either chose to stay put or was recruited after the change. There were one or two courses who were recruited thinking they had LHR only to find they had been switched, not happy bunnies. The seemingly random letter posted by A Lurker was clearly a response to someone who didn't like being between a rock and a hard place!