DMCA: copy protection "technology" doesn't have to work

Interesting that it's an offence specifically to circumvent copy protection technology. If the technology actually worked there would be no use for such a law...

Does this mean that Apple could use entirely bogus encryption (rot13, say), and then sue people for "circumventing" their "technology"?

It's like Macrovision all over again...

I'm not arguing about the ethics, just saying that inasmuch as it interacts with "technology", the law doesn't make sense.