If it would be considered shockingly newsworthy that a company hires old female programmers in India for the same pay as young white guys in SV, that in itself seems evidence there is no shortage at all.
The inability to hire given a "fish in the barrel" hiring target, might indicate a shortage of quality management, especially HR management, but clearly not a shortage of software development professionals. Suggesting companies need to pay more to get better management, given income disparities that already exist... The real story is no matter how much more management is paid, for various workplace or cultural or demographic or educational issues the management product produced even at ridiculous pay rates is shockingly deficient.