It looks as if it was also necessary for the political system in Tibet pre-1959 to change as the one in place was indeed medieval and needed an in-depth reform.
Maybe the leader of Tibet before 1959 was going to do that, but this story shows that the Tibetans themselves were not organized enough to "fight back" and did not even follow the instructions given for them to keep the system in place, preferring to focus on petty merchants disputes.
So with such little following and trust from the Tibetans themselves, how hard it would have been for the leaders of Tibet pre-1959 to make reforms and bring the region into the 20th century. It would have taken a very long time, and it could also have become rather chaotic.
When China started to administer the region in 1959, it was much more rapid and with much more resources. Perhaps China did not support the traditional heritage during a period, especially 1966-1976, but that is a period that happened throughout China and not only targeting Tibetans. To say so would not be fair.
Today Tibet is prosperous, Tibet's culture is respected, protected and promoted by the Government.
I have heard recently somebody complaining that there were policemen in the street "watching", but last time I checked, this is what policemen do!
Lhassa is peaceful, Tibet is prosperous, Tibet is part of one of the strongest and largest country in the world, one that will grow even more stronger.
So it seems, Dorje Shugden helped for the Tibetan leaders pre-1959 to leave the region so that, perhaps, they could continue teaching the great Tibetan spiritual tradition, as their very own people failed to back them up as the leaders of the region anyway.
And perhaps Dorje Shugden gave Tibet's region the opportunity to bind administratively (as it was historically already) to the most reliable force in the world: China.
