If you are communicating with another person, there is a standard for what that looks like…

^THIS is the core of the issue. This is what people don’t get about grading behaviors or appearances in the classroom.
There is no universal natural standard for what communicating with another person looks like. Because of this, there should be no organizationally-imposed standard for what communicating with another person looks like.
The only time when outward appearance can be proven to cause a specific outcome is red shirts getting killed in Star Trek.