To be honest, CTA has done a lot and a lot of negative actions and activities even before the ban. Some of them including banning very high and beneficial lamas from reincarnating and sacking their ladrangs for nothing more than samsaric purposes. They have also defied the Dalai Lama many times over the centuries, especially with the instructions of the great 5th and the great 13th, whereby the great 5th did not want to have the war but his changtso insisted and did it anyway. The 13th Dalai Lama wanted to reform Tibet and implement many modern facilities and told the people to prepare for war and arm themselves, but nobody listened to him at all. If that is not broken samaya, what is? Even in modern times, the tibetan government They have also caused a lot of harm in the minds of Tibetan Buddhists worldwide in this era too, by imposing the ban and spreading lies on the history of Tibetan Buddhism, covering up their own wrongdoings by erasing their history books (but they cannot erase everything, people will still find out in the end), spreading damaging ideologies that they should draw teachings from every tradition and confuse them with more distorted information about Tibet's history. And not to mention forcing monks to break their vows by swearing that they do not practice Dorje Shugden, and harming the people who practice Dorje Shugden and last but not least, splitting the sangha and causing the great divide that is Serpom and Shar Ganden.
Logically, can something or people like that can ever have the great merits to receive Dorje Shugden as their protector? Or that they need to wait until some karma is purified before they can accept Dorje Shugden? Them not being able to practice Dorje Shugden and the downgrading of TGIE into CTA is just a result of their negative karma which causes them and prevents them from being able to practice the Dharma protector. Perhaps the ban reflects this? But instead of purifying their karma, the CTA just creates more and more negative circumstances for themselves. At this rate, it would not be long before CTA is downgraded further into nothing more than an association or a society of Tibetans dedicated to preserving the cultural identity of the Tibetans. It's not easy to purify the negative karma of over 4 centuries of accumulated negativity, especially if CTA does not realize as a result of too much whitewashing of their own history to the point they are unable to learn from it and repeat their same mistakes repeatedly, unlike normal countries. The more they continue with the ban and not restore Reting Rinpoche's status along with all the lamas that they have banned in the past, the further away they will be from the cause of Tibet.
CTA is more or less a lost cause. It is predicted that Tibet will return to the Dalai Lama because CTA will be dissolved by then and nobody will be provoking China to hate the Dalai Lama anymore. Hehe. It cannot be that a government who has done so much harm to the people and to Buddhism can survive and rule again. If they can, then the Dharma protectors do not exist and neither does karma. It is also said in many prophecies that Dorje Shugden will replace Nechung as the main protector of the Tibetans, but until CTA cleans up their act, they will not be getting the most powerful Dharma protector in the world on their side. It is really up to them to wake up and make amends before things get worse for them. whats next for CTA after this...hmmm....Tibetan cultural society from central tibetan administration? hehehe.