That cockpit is the size of the average living room. Maybe, in the future, the trend's gone on and Americans are so fat that they have bred into a race of giants?
Yeah, it'd not easily comparable, but that isn't really a problem in itself. Fighters and bombers SHOULD still be a good bit bigger than, say, a jet plane. There's a lot more equipment to fit in them. (engines, massive amounts of life support including oxy and water tanks, G-absorbers, weapons (rockets are kinda space-hogs, ya know? In fact, most game loadouts wouldn't actually even fit in the models in FS), fusion reactors, and enough heatsinks to absorb a level of heat at least as great as that of the sun. And armor.)
It takes away a reference, but that's more or less okay- if you want the game to look more "real", which would be part of hte point here, you'll just have to live with it. Make a human or EVA model, if you like. The FOV, however, can be fixed without changing part of the game's atmosphere itself.
But I agree. Some cutscenes giving a sense of scale would be good. If anyone'd ever send me their Poser models or something, *cough* there might just be one.