I wonder if this could also be said about the behavior of the Wordpress “Publish” button. “Even if you make the error of thinking that clicking the Publish button won’t actually do what it says it will, you’ll certainly figure it out”

Making the Medium “mistake” is certainly less potentially destructive. Perhaps that was the point, but if my “life was over” after accidentally clicking a button, I’d make work of not doing it again, regardless of whatever design flaws caused it to happen in the first place.