I feel the need to point out here that every time Picard's morals have come into conflict with Starfleet regulations the morals have won out.No need to remind me as I've seen it many times. However, I still don't think that would be enough for Picard to release highly classified information to the general public, and it is quite frankly ridiculous to suggest that he would.
So while you can try to argue that Starfleet classifying what, as far as Picard knows, is just a message of peace and togetherness wouldn't morally outrage him enough to act. That is very much not the Picard that has ever been portrayed in various shows.
