It was SO funny [because obviously English has a really rigorous orthography that's designed to prevent this kind of thing]!"

I'm pretty sure that's not how that sort of neurotypical is thinking. It's more like "of course everyone is always alert to get the social details right, and it's shocking incompetence to fall down on the job!".

If so, we're back to psychological unity of the human race-- geeks sneering at people who can't manage to understand completely obvious things about computers are showing the same lack of imagination.