You only really need one guy to hack the DRM and it's game over, since (a) he can share how he did it, and (b) he can freely share the decrypted files. Not that it really matters on Netflix since just about everything is already on DVD (and thus on torrents since CSS is cracked) anyhow.
Exactly. I'm certain the adults in charge know that some level of hacking is inherent to the game at this point. My guess is they're treating the set of all consumers as another corporation: an entity to do battle with in the ongoing pursuit of the best possible ROI.