They are not morons. These things happen all the time.
The issue is the fact that whereas in 1945 fighters cost about as much as a few 'fancy cars', fighters are now 200 homes. Of course, they should be thought of as 'flying weapons platforms' ... but still.
$16M F16 would be one thing, but a $120M piece of kit ... that hurts.
I'm wondering how well the 'downgraded' variations of F18++ or 'some new fighter' will fill the gap or if Boeing can make a 'cheap F35'.