I have a theory that certain planes developed during 90's and early 00's must have deep-rooted software or 'chip' supplier issues like the QRS-11. No proof. When I see F-117's being pulled out of mothballs and F-15s and B-52's being upgraded, it makes me think someone at Trump Co is looking for increased confidence by using older platforms.
Incidentally I read a piece last month or so about Northrop Grumman possibly shopping and upgraded YF-23 platform to Japan. Could just be someone's pipe dream, but apparently they are pitching something.