[sideband]

The current "tech" job interview process is engineered to select for people that are both competent and secretly insecure about their skills, and to do this with little or no false positives. Competent employees are, well, competent and secretly insecure employees tend to have a need to impress. Both of these traits works to employers benefit.

A large amount of false negatives, like candidates that would otherwise be great employees but maybe just suck at whiteboard coding, is considered acceptable by most employers because research shows the cost of bad hires is much much higher than missing out on many good hires. Employers know the current process is miserable and leaves a lot of good people behind.