From the article:
When we went to our seats, the wait staff let us know that despite the fact that the previews were playing, we wouldn’t know until the movie actually started whether we could see the film or not. If it didn’t work, the screen would just turn black. Luckily, the film went through without a hitch.
Money people are literally too stupid to understand anything other than line go up or line go down. They were told line would go up if DRM, so that’s what they want.