[citrin_ru]

Try to look on a hiring problem from another side. Companies getting a lot of applications and at least some either stretch the truth on their CV or just lie, so trusting CV is not something a company can rely upon. Instead a company need an universal for all applicants way to filter out ones who likely cannot write code and then spend time only on candidates who've passed this test. Unless difficulty of this coding interview is miscalculated any experienced developer should be able to pass it, may be with a few days of coding interview practice. And if you are not ready to spend a few days preparing for interviews it's also a bad sign in eyes of an employer.