This is true but the “curse of knowledge” from the article explains why this can happen. It is easy for outsiders like you and me to see the value of such things but as an insider you can become blinded by your knowledge.
That is possible. Though I equally like documenting things where I can be considered an "insider" that I know only other "insiders" will see. I think that it is about being able to see the usefulness, and beauty, of a well made documentation irrespective of the level of familiarity/proximity. Either you see value in it or you don't.
