[marbletiles]

This is like "HTML isn't code" again. For non-technical readers, there is their own language, and there is "code" - a bespoke language used solely to instruct machines. If you can't type to the machine in your own language (eg like you can to a chatbot) then you're using code. "The machine" is the device on the desk.

"ls" is code. You type it into the machine's keyboard, and it understands your code and performs that instruction. The statement is not "radically" wrong, it's an oversimplification that both communicates correctly to the lay reader, and to the proficient reader who understands the nuances and why they're irrelevant here.