Well whether it was a mistake or not, it is rejoicing news as this publicity is good for Dorje Shugden practitioners. However, i doubt that it was a mistake. As a Press Officer of Tibetan government in-exile, Tsering Wangchuk, should know what he was talking about and if it was a mistake, why was there no statement from the CTA responding to this?
Whatever it is, I think that this is auspicious news and a renewed hope for all Dorje Shugden practitioners!