What would be the point of shouting about this? Even if the F-35 is crap for some reason that is kept under wraps, we don't have anything lined up to replace it. We can't just replace the primary US fighter jet at the drop of a hat like its a standard issue uniform or something.
It's BEEN crap, for lots of reasons, and they've spent an extra fifteen years or something fixing all of that. If it there was still substantial crap, how would we suddenly not know?
You also can't just not have a workhorse fighter jet. That is a death sentence for any modern military