It is a well known fact among commercial game devs that you can't stop piracy, then best you can do is slow it down. Ask anyone who has been in the game dev business for a long time (there are plenty of interviews on the subject) and they will tell you, they only intend to slow down piract for the first month or so to get the inital hit in sales. Hopefully thos sales cover the cost and make a bit of money. The console maker have to do whatever they can to prevent piracy to show the devs that their system is safe enough for them to release games on and actually make some money, even if it is a complete lie.
If you were a AAA game dev studio and you went to two console makers,
one says "We combat piracy with new per console encryption and security bugs are fixed asap, your game will be safe on our system"
and the other says "We have no DRM, there is nothing preventing piracy on our system"
Which one would you expect to see the AAA games released for?
...It's the same for movies, they only need to slow piracy down a little, they make all their money in the first week at the cinema.