When did Springfield reorganize (I googled "springfield armory bankruptcy" and nothing came up)?
I've owned four Springfield 1911s, made between 2003-2016, and didn't notice any difference in quality among them.
There was a belief that U.S.-made guns from the Imbel era were of higher quality than complete imported guns, but that's something I've "heard" as opposed to experienced myself.
"Late guns", from about 2015 on, are completely made in America, while guns made prior to that could have been imported as complete guns, imported in a state that required that they be marked as having been made in Brazil, or imported in a state that required enough of the manufacturing process to be completed in the U.S. that they are "made" in America.