[Allower]

Well I mean that is the point of abstraction.. if we always had to have our heads at the lowest level we would not be productive what-so-ever.

[zbentley]

"understanding the basics of the operating system internals and how your code interacts with them" is far, far from the lowest level.

It is also an essential understanding for writing quality, performant code in any context--web development included, even frontend.