Logic isn't applied, law is applied. The DMCA and associated copyright law distinguishes between these cases and puts these specific restrictions on one case a

Logic isn't applied, law is applied. The DMCA and associated copyright law distinguishes between these cases and puts these specific restrictions on one case and not the other. Just because something is analogous to another thing in some way doesn't mean both must be either legal or illegal together. You can put whatever you want into a law, so long as it is constitutional, and the Constitution explicitly provides Congress with the ability to enact copyright laws, even dumb ones.