This is actually quite genius. It's essentially advertisement for the real DVD.
They're not trying to win over pirates, as everyone here has assumed.
On the contrary, they're targeting "morally sound" internet users that are already against piracy, who would jump at the chance to download a full DRM-less movie legally. These people have a good chance of then going on to buy the DVD that comes with all the extra features.
The pirates are going to be pirates....Paramount aren't stupid. This is just genius advertising to people who wouldn't pirate in the first place.