Unfortunately we all know that, but according to Lake Wobegon management style, not only are all our devs above average and all our code is error free, but also all our information is useful. All of it. Says so right there, on the motivational poster.
It doesn't apply to your example, but sometimes in maint mode the best part about boilerplate comments is being able to search for a synonym that appears in the prose comments but not in the code. In your example you could have some kind of distance calculating function that somehow neglects to mention Pythagorean theorem in the code itself, but very optimistically it would appear in the boilerplate, so I could grep for it.
It doesn't apply to your example, but sometimes in maint mode the best part about boilerplate comments is being able to search for a synonym that appears in the prose comments but not in the code. In your example you could have some kind of distance calculating function that somehow neglects to mention Pythagorean theorem in the code itself, but very optimistically it would appear in the boilerplate, so I could grep for it.