I think Doctorow really summed up the issue the best in that writing:
Now, onto the artistic case. It's the twenty-first century. Copying stuff is never, ever going to get any harder than it is today (or if it does, it'll be because civilization has collapsed, at which point we'll have other problems). Hard drives aren't going to get bulkier, more expensive, or less capacious. Networks won't get slower or harder to access. If you're not making art with the intention of having it copied, you're not really making art for the twenty-first century. There's something charming about making work you don't want to be copied, in the same way that it's nice to go to a Pioneer Village and see the olde-timey blacksmith shoeing a horse at his traditional forge. But it's hardly, you know, contemporary.