This message is at odds with how most people use Git. When they talk about master, they mean remote master. Because local master is not useful in their workflow

This message is at odds with how most people use Git. When they talk about master, they mean remote master. Because local master is not useful in their workflow. Saying that people should learn the concept is not helpful. I know what it means and I just disregard the message as noise. Wait, I think I often reflexively write "git pull" when I read that message. So you could say it does serve some purpose.