I think the goal of DRM was absolute security. It only takes one non casual DRM-breaker to upload a torrent that all the casual users can join. The difference here is the company responding to new jail breaks in real time which is obviously not an option for DVD CSS.
No, I know people who’ve worked in high profile DRM tech. Not a one of them asserts the goal as absolute security. It’s just not possible to have something eyes can see but cameras / capture devices cannot.
The goal was always to make it difficult enough that onky a small percentage of revenue was lost,
