They only learned later that the Void Breaking Sect was actually just a branch of the Void Breaking Sect in this area.
The Void Breaking Sect comes from a Great Teaching.
Of course, with so many people practicing differently from the Void Breaking Sect, it was inevitable that they would not be accepted by it.
However, they could become subordinate sects to the Void Breaking Sect.
In the Eastern Province, many sects protect themselves under the wing of a Great Teaching to survive.
Of course, as the Great Teaching shelters them, they too must show their gratitude. It is much like those large dynasties in the Eastern Wasteland that must pay tribute each year; subordinate sects are not necessarily expected to do so annually, since that would be far too cumbersome, but they do have to offer tribute every ten years.
Besides, if the Great Teaching issues an order, they have no choice but to obey.
If possible, they naturally would not want to become a subsidiary sect to others.