It certainly seems counterproductive in many instances. The art of international diplomacy is taking a turn for the worse in many capitals. That said, countries commenting on matters where they have little or no skin in is hardly a rarity even if ill-informed, insensitive or biased. We just are used to certain countries/leaders doing it but not so much China, until recently. Perhaps it is an effort to project a view that the international community shouldn't become too accustomed to China staying in it's 'place'.