Having locked himself away for secluded meditation intent on breaking through to the Peak of the Sea Formation Realm before he emerged, Xuan Hao was unaware of the troubled state of Feng Chen when he learnt about the ascension secret realm inside the ascension realm tower. Not because of the appearance of the ascension secret realm, but instead because he had originally wanted to find Elder Song for help, but soon enough he realized that Elder Song was nowhere to be found. Essentially forcing him to take charge of the situation.
Delegating the task to someone else wasn't possible, as the matter was far too important to leave to just anyone and the few other elders who might have had had enough status within the sect to take charge of the situation were either busy elsewhere or in the process of challenging the ascension realm tower. Leaving only him behind to take care of the situation on his own.
