As much as the Dalai Lama must reunite the Tibetans in every way, that is to stop them from distinguishing themselves as being from different provinces, he created a huge divide that may not be conciliable: the ban on Dorje Shugden has caused the entire Chatreng provence in Tibet to be agains HHDL and to be against CTA. Assuming if China for some reason allows HHDL to take control of Tibet again, that province itself would refuse entirely.