That's apparent to the guy you're responding to. He's pointing out that the so-called "unclassified" is actually the class "non-secret". A truly "unclassified" object would not have gone through the process of classification. It would not have a class.

Of course in English this is fairly common. The object of price zero is said to have no price. Yet clearly it has a price, it is just zero.

I have to say that's an amusing observation and sort of reveals the type errors that occur when we model real world things in type systems.