The architect is the only idiot, who knows the tool as a whole and, more importantly, its role in the bigger world. Other idiots know only how bits are fiddled in a small corner of the tool on which they worked during their probation, they don't know the big picture, at all. In any case documentation in big companies today is outsourced to people with zero programming experience, and they obviously can generate only absolutely vapid text with traces of fuzzy associative connections with the topic.
So literally you’re saying the architect is the only person who can write good documentation.
Also the architect is the only person who did not write a line of code yet understands the tool better than engineers who work, code and solve problems across the entire stack.
He doesn't know how local variables are named, but what's needed for documentation is purpose and nature of the tool, and that's what engineers often don't know, because it doesn't help with bit fiddling. And a coding architect is an architect too.
