So needlessly passive aggressive. FAANG jobs, right or wrong, are super competitive and extremely well compensated at senior levels. You just won't make the same amount of money writing BI software or CRUD line-of-business apps for an insurance company, it's not possible. When you've got that many resumes to go through you need to add whatever filtering mechanisms you can. Nobody does any BST stuff at work. But it's a filter. Reasonable people can disagree about how effective of one but it's at least no worse than just arbitrarily throwing half the resumes out, because the people who know it have some CS background, or they want the job bad enough they were willing to spend a couple hours to learn it. It's not like it's a high bar to meet.