Isn't Google known for analyzing the hell out of their candidates for predictors of success? They dropped the GPA requirement, college degree requirement, brain teaser questions - but they kept the leetcode questions. It's probably least bad of everything else they've looked at.

Google talks a lot of shit about rather missing out on a good candidate than hiring a bad one.

What removing a metric tells you is that people that they regretted hiring people who looked fine on those metrics. They have no way to determine if people who failed on other metrics were better than the people they hired.

The problem is that if you measure someone by a metric you can’t actually disregard it in your decision process. Even a double blind affects the subject’s behavior.