Either that or the CTA could have suggested policies to the Dalai Lama, letting him know what will be going on. If he is silent and does not say anything then go for it. Remove the Dorje Shugden ban. Even if the Dalai Lama says something when they are suggesting the policy, they could still use the policy, but not push it as hard.
But at the same time, Dalai Lama has sad that he has redrawn his work in the political scene, remaining at the religious scene. Hence, even by removing the ban after notifying the Dalai Lama I guess it is also correct.