

neither accessible nor feasible for the average computer user.
Absolute hogwash. Learning like five short words is absolutely not unfeasible for any literate person, if a user can’t do that, you can be sure they aren’t actually an average user, they can’t do anything with gui either. And probably need help tying their shoes.
A two years old child can learn 5 short words. A grown up can write them on a sticky note and plop them on a screen.
If you ever had to teach anyone anything, properly teach, you would know it’s a myth. It’s self-explanatory to you because you’re already familiar with the logic, language, conventions. I’m guessing, you grew up with all that from childhood, and you just forgot how you had to learn all that, and now you assume this knowledge didn’t need to be taught. You think cog is a universally understood language for settings because you always had it in front of you. Just like a lot of people think/thought that 3.5 floppy is a universally understood icon for “save”, and people who grow up now have no idea what I am talking about.
And then you assume that you are the average person, and start measuring everyone by this mark.
But if several years of teaching people of different skills, motivations, and ages, how to work with computers taught me anything, it’s that there is no universal language, there is no, and cannot be anything self-explanatory, and intuitive interface is a myth perpetuated by people who newer used anything other that one OS they grew up with. There is no amount of skeuomorphism you can employ that doesn’t require at least some amount of learning.
And when it comes to learning, let me tell you, there is nothing more straightforward to teach than “you type words and then read what the computer typed you back.”
And if several years of tech support taught me anything, it’s that if a regular person who doesn’t care about a computer encounters a problem, they don’t have inherently better time fixing it with GUI, never, not at all, not in a million years. I however always have way better time helping them, if it’s Linux and I can tell them what to type and they can read me the response. This actually true even if people are good with computers and know their OS.