You mean ban TGE.
For me TGE from the political perspective is like numerous political parties in Kashmir ,seeking/voicing independence from India.
Except unlike the Kashmiri parties going rallies and demonstrations for freedom,the free-Tibet demonstrations are not allowed as these people are refugees.
Banning TGE comes with its own set of consequences
1.whose is going to administer the Tibetan refugees?
2.Reaction of domestic political parties to it,as it is interpreted by opposition as submitting to Chinese interest.
3.Will it change China stance on India?
For the last point,from a pragmatic view,China mostly won't budge on stance on SA geopolitics as Pakistan is more valuable to China than India.
The most India can do is "limit TGE's political activity".
For that to be done China has to make the first move.
Say,comes a situation where an exiled Kashmiri militant leader takes refugee in China and is not allowed to preach his views from the context Chinese Govt adheres to Indian stance on Kashmiri militants.
Then as a sign of reciprocity India might tighten rules for TGE.
1, China will be able to receive those refugees, if that there are Tibetans willing to stay in India, we do not disagree. If India has a "human rights" concerns, to establish an international observer mission to Tibet, including India's representative.
2, it is India's internal affairs, just to judge India's strategic needs, China can not do anything about this.
3, certainly has changed, at least there is a large change in confidence between the parties. But with a realistic attitude, China and India still have a border problem, which is also tricky, so all the gains bottom line is that an increased mutual trust, both the Government and people. A better attitude to solve the border issue, what is better? At least when we want to solve the border issue, no more enemies in the psychological attitude, but only in some border territory issues, which is at least beneficial.
Other things, can only say that step by step, at least China not to provoke fight of Pakistan and India, I think China has a good attitude, the future will not change. Chinese attitude certainly help that Pakistan and India to resolve the problem.