The [UN] Secretary-General [Ban Ki-moon] strongly believes that freedom of expression should be exercised responsibly and in a way that respects all religious beliefs.
Now he never said free speech must respect religion "or else" and it doesn't look like he's proposing any sort of enforcement, so it's not quite as bad as all that. As long as that is just his opinion then we're in no immediate danger, although it is a little scary to hear anyone in a position of power say something so ignorant. There's nothing special or profound about the right to say nice things about people. Free speech is so important precisely because it protects crazy people when they say their crazy (and sometimes not so crazy) things.
Besides, it's a little silly when you think about it right? Does the existence of Pastafarians mean people shouldn't eat spaghetti out of respect? Surely not.