It may not be necessary for each individual to file suit or to join a class action lawsuit. It is called a fine in the article. Maybe the blog knows more than we do about the status of that.
A fine is a criminal sanction and this is apparently a civil case which means they were awarded compensation (and not a fine). Precedent is only set by the supreme court and in principle only in matters regarding interpretation of law. In this case, anyone else wanting money would have to file their own law suit. However, the case is not finally decided since Tesla may still respond.