Supreme Court rules on third-party retaliation: Relatives protected

The U.S. Supreme Court has held that an employee who was fired shortly after his fiancée filed a bias charge against their employer may sue for third-party retaliation under Title VII. According to the court, the employee could be considered an “aggrieved person” because he was “well within the zone of interests sought to be protected by Title VII.” What's the practical impact for employers?