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.
Companies exiting a market and leaving clients/customers without their service isn’t a new thing. Was happening well before DRM was even thought of, let alone implemented. And still happens now. Polaroid leaving the instant photo market comes to mind.
So what point are you trying to make with that?
That sony is fully at fault here?