These companies are following the universally efficient strategy for life, to be as bad at everything as you can get away with. Interviews like this aren't good at anything they're meant for, but the companies that use them keep succeeding, so why would they stop?

Many of us here have been complaining about all this stuff and calling out the problems for over a decade. We've been right these interviews are terrible at testing candidates, and they've been right that it completely doesn't matter.

The fact we're still complaining means these companies are right about what works for them to stay competitive and stay in business.