Very true. This stuff started at places like Google and Facebook and it makes a sort of sense for them as right or wrong they're very focused on hiring new college grads. With no real work experience to speak of you can do a lot worse than hire the ones that show they can apply their CS coursework to leetcode problems.

But doing the same to workers with 10 years of real world experience doesn't make nearly as much sense. Like hiring medical doctors by quizzing them on organic chemistry problems. Google and Facebook do it because they can and they don't know what else to do, but I don't understand how it became a universal practice.