This would be like someone trying out make the first time and not realizing why it isn't working becaue they didn't realize they need literal tab characters in the make file for the rules to work. But if they don't read the documentation, there's no way they would know that.
The real problem is people trying to figure out how tools work by experimentation as opposed to reading documentation. If someone reads the documentation of git send-email and the project's contrib document contains the preferred settings for that utility, then submitting patches should not be an issue.