Certainly but the higher expertise isn't a requirement for most dev jobs I would argue; If you are developing custom algorithm and advanced data structure, you

Certainly but the higher expertise isn't a requirement for most dev jobs I would argue; If you are developing custom algorithm and advanced data structure, you are probably in the fringe of what the dev world do. Otherwise I am struggling explaining why there is such a great demand for devs that short courses (3-6 months) are successful, the same courses that fail at teaching the fundamental of computing.