I don't see anything that Fender/Gretsch could do proactively to address this. If they admitted how this came to happen (whatever the explanation is), they'd have to offer to do something to compensate. The only thing I could think of that they could do is offer to replace the pickups, which would cost way too much money--not for the pickup itself, but for paying shops to install it.
No, what companies do in this kind of situation is phase out the model in question, and maybe replace it with something new (or maybe just "new"). In this instance, maybe it would be something like a "G2230" (just pulling that number out of the air... Don't jump on my a** if it's already taken by some classic Gretsch model!) with some new colors, and new pickups (whether actual cheap humbuckers, or the same single-coils in a new housing). They'd advertise this new model with correct specs, and never speak of the G2220 ever again.