They take 1 look at this photo and think "hmmm, that aircraft is so unacceptable as it should have been destroyed so that we can buy new ones! After all, how am I to survive on just my Military Pension unless I get the Pentagon/Taxpayers to buy lots of new stuff?"
I think the real replacement for the A10 is an unmanned drone controlled by troops on the ground.
A drone with a camera, 4 Hellfire missiles, a chain gun and 500lbs of bombs would be cheap to build and easy to deploy
That is just speculation but it seems to be where things are headed.