It is not.
One side may have no doubt it is a violation of the agreement, and say so. There is no problem with that.
One side may have no doubt it is a violation of the agreement, and say so. There is no problem with that.
And that has no relation with what we are talking about. If the Swiss government doesn't follow the written rules of the agreement, it is in violation of them. Saying so doesn't make one a lier.