I disagree with the exact statement but also agree with its sentiment. The functionality of a language should be applied for a specific engineering reason, and

I disagree with the exact statement but also agree with its sentiment. The functionality of a language should be applied for a specific engineering reason, and protection features are sensible at the right scale. But at no point does it replace documentation efforts. You can surface the simplest possible interface to your users and still have questions and concerns that need supplementary text.