The point of the video was to show off the tech Quantic Dream is working with for future games. But I think it works as an amazing short film as well. In fact, I could easily see this as the intro to something much bigger, such as a full length film or series. I could even see this as the intro to a full game.
Any way you look at it, it works really well and could easily be expanded on. Even if nothing came from it, I believe it stands up really well by itself as an emotional short film that everyone should watch. They make you care about Kara and what happens to her in the short amount of time they use. Ultimately, in more ways than one, the video demonstrates the power technology can have on humans.
