I concur with your assessment. They come here to American schools to be sure that they have a direct portal to an H1B and many of them cheat to get A’s and overstate their experience and abilities to get that position.
They are no different than the “Customer Service” rep named Jim who reads from a script in his best Apu accent to (not) answer your questions or problems
I would be willing to bet that few if any of the offshore replacements ever saw the inside of an American university. If they had they wouldn't be coding for a utility, they'd be in Seattle or Silicon Valley. These are most likely graduates of second or third tier Indian technical schools.