In short, it means that logic of DRM usage is completely invalid and based on false premises (when someone tries to justify it using reasons like increasing sales for example and such).
There can be other possible reasons for DRM usage, which aren't Lyseknoist, but simply crooked. I.e. for instance, covering up incompetence, competition exclusion, standards poisoning, undemocratic policy making and so on. Those are done to achieve dirty goals, and they are harder to counteract than ignorance.