Lots of changes can happen. They just haven't here, in this case. Did you read the article? The arguments they had during the 1800s basically foresee all of the issues people talk about regarding copyright, including foreseeing piracy.
Instead, feel free to make your point. I pointed to an article and made a very specific case - the issues people talk about today, and think are unique to our time because of technology, are not unique, and have been discussed before our time. As proof, I linked to an article which has excerpts from talks given during the 1800's.
I'm still unsure what case you're trying to make, and whether you agree or not that my statements were correct.