If this is a documentation for something which there is no automatic script for it, I say a job well done. If this is for something there is already a script for it, I say it's reinventing the wheel.

Well you can say the automatic script is not working. As far as I know it
works most of the time, so if there is a bug, fixing the bug is more needed than writing a documentation to justify that the automatic script is bugged. Furthermore the automatic script was never mentioned in the documentation, so I would say the intention to reinvent the wheel is obvious.

If I am asked, which is better, with or without documentation ? Then I would say, of course, with documenation is much better. As a matter of fact, the mentoned article is good documentation, nicely written and accurate. It helps.

If I am asked, which helps more people, a good documentation or an automatic script, I say an automatic script helps more people.