[hellohello2]

How can you be so critical of a stranger's work given that you haven't even seen it?

"that reason was most likely because" -> Bear in mind you do not actually know the given situation.

[crispyambulance]

None of us knows the exact situation but the fact that the person said his documentation was "complete, correct, and relatively terse" is a red-flag. It seems to me like smug over-confidence.

If the document really was so clear and error-free, then why would the boss try to "fix it"?

[unethical_ban]

Assuming you're correct that the commenter is unaware of their communications deficiencies, then as much of your confident criticism should be directed at a manager who would silently change a spec sheet for some reason, and not coach the employee on why that was needed.

If it was truly a manager, where the main role of their job is to manage the performance of their employees, then they failed here.

[ehaliewicz2]

The boss also tried to fix it in the lowest effort manner possible, without even checking the results.

[basilikum]

People try to fix things that are perfectly fine all the time.

People often apply nonsensical standards to things.

[hellohello2]

Who knows why? That's my point, its not us