Believe it or not, there are these things called books which contain all sorts of knowledge about things like low level C, system calls, assembly, even digital logic. I know because I have several of them sitting on my office shelf thanks to an EE oriented education.

I could have picked up the same set of books and obtained the same knowledge with a more CS focused background. The hardware stuff is harder to pick up compared to software when self learning (for most - I know counter examples). But it’s by no means impossible.

Point being, I don’t agree with the author. If you’re a cloud native engineer and you want to learn the lower levels of abstraction, you can. But the point of cloud native is that you don’t need hardware knowledge and you can focus on your product/users/hobbyist itch instead.