When you procure a 3nm chip you expect to keep it working as well as when you bought it, even if you block the management engine for privacy.
When you buy a fighter plane you should expect to not be able to fly for the full duration of a single conflict the manufacturing country disagrees about.
Lack of MDFs does not mean that you can't fly missions. It's an intelligence product that assists with mission planning. That's like saying your car is completely unusable if the builtin maps are a few years out of date.
Ukranian hackers know how to hack John Deere tractors.. hah, downloading files from a Ukranian web forum to install on your F-35 would be very dystopian cyberpunk.
When you buy a fighter plane you should expect to not be able to fly for the full duration of a single conflict the manufacturing country disagrees about.