Very true, I must agree with you.
The CTA have always had their priorities on the wrong front, which is obvious since not much development can be seen in their cause. I'm not even sure if they still remember their purpose as a government, which is to serve the Tibetan people instead of breaking them apart with something as silly as enforcing the ban on Dorje Shugden.
The Tibetans may think that it is 'only' an act carry out by the CTA, but they never think that such a full scale extermination of Shugden practitioners require a lot of resources in the form of money, time and man power. Instead of using all these for the benefit of the Tibetan people (whom I believe pay taxes), they are using it to prosecute fellow Tibetans.
I am not even sure if the CTA is 'fighting' China, or fighting with Tibetans, because at the moment, it does seem like they're 'killing' their allies.