If their invoked Dorje Shugden at all and go on to tell the world, it would be then be that the ban should be lifted. If the Dharamsala really secretly invoked Dorje Shugden and this Tsering Wangchuk tells the world, it would be great but it is highly unlikely. It this case, wither the invocation was not true, in which case "Tsering Wangchuk's account was hacked or faked or the CTA invoked Dorje Shugden and Tsering Wangchuk shouldn't be telling the world and he is now fired. LOL.
Honestly. If Dharamsala practice any Gelug lineage at all, invoking Dorje Shugden is not at all surprising.