> This allowed NASA managers to imply a hierarchy of importance in their head: the writing lower down and in smaller font was ignored

These managers were REALLY that braindead? These are NASA managers in charge of life-or-death decisions, and their dull eyes glaze over as spittle puddles underneath them because they're too stupid to read one whole entire paragraph worth of text without ignoring subheadings because they "don't look important"? I hope they're happy with the result of their childish intellectual laziness.