Azaroth didn't step in to break the barrier because he wanted to give some time to Dylan Ross and Camille so that they could understand their current situation from the Night Mountain Sect's perspective.
Six hours had passed since Dylan Ross entered the Night Mountain Sect. And Dylan was wondering how he could assist the Night Mountain Sect in this battle against the Black Lake Sect.
He didn't know, but he wanted to resolve this conflict between these two great sects before moving towards the Lamhilhan Theocracy.
He felt it was best to awaken his Angel. She could help him make a difference in this battle between the two sects.
When the Angel awakened and found out about the entire situation, she was quite dissatisfied. She thought that Dylan's greatest priority should be to go to the Lamhilhan Theocracy.