Well, I don't work for GF, but I did work for the old L10 fleet manager (John Ross) at another company, and I can say that wherever the Brits are, especially if they have worked their way into management, sometimes tend to look down their collective noses at the FAA license...on the other hand, when these Brits went to work for SaudiArabian, they had to get FAA licenses, and many didn't like it one darn bit...especially as some failed the type checkride.
You see, the FAA does not have an 'old boys network'...you either measure up with your flying, or you are sent packing.
By the way, John Ross was a class act...really nice guy.