No, copy-and-paste is a form of automation too. You could always type the written characters by yourself when extraction is prohibited, although it sounds stupid. Basically, both features grant access to the contents in a basic way. They just prohibit a certain kind of use of its information. Technically, of course, it doesn't make much sense, because it's easily circumventable. But it's an okay solution as long as most people follow the restriction and to follow these restriction is considered decency.
Think about it: Most people respect a "private" sign in the real world when there's no physical obstacle, so we don't have to spend huge money on security. If everyone starts ignoring these "soft" restrictions by their own discretion, the world would become much worse. Originally Adobe created this because their customers want it. But I'm pretty sure companies like Adobe might be eventually going to impose much more strict, heavy and technically ill-formed DRM scheme when the content providers demand, no matter how ridiculous or broken the idea is.
My only gripe is that the whole mechanism was made and spread by a single company without much consideration or democratic discussion, and nowadays it gets so important. But sadly, that's how most of today's format standards were created.