Xie Miao hesitated, ready to voice that it might not be necessary. After all, wasn't Madam Shao already out of danger? Why resort to killing them all?
Unbeknownst to him, Xie Jingrong's intention was to eliminate those individuals as a warning to the Fourth Prince and to prevent any potential loose talk.
While Qiao Xuan, as a court official's wife, was unlikely to face harm from the Fourth Prince's orders—assuming the Fourth Prince had a modicum of sense—it wasn't guaranteed that the servants wouldn't spread inappropriate rumors once they were outside.
Xie Jingrong couldn't afford to let Qiao Xuan's name be associated with any untoward words.