Nobody automatically knows everything, and we have limited energy for drawing inferences based on what we do know. So the material covered in this post isn't obvious to everyone in its target audience, especially since Rust has had some success in making systems programming more approachable to inexperienced programmers, which is a good thing.

(Author here)

Thank you, you've expressed one of my goals with doing this sort of investigation/getting this data far better than I have. :)

It's something that's feels obvious once the dots are connected, but I was pretty sure many people wouldn't connect these dots automatically.