[imtringued]

They already have the most advanced form of DRM possible. Unlike a DVD or BD they can always cancel your account, pull movies from their catalog and dictate from which country you can watch movies. What do they gain from adding clientside DRM? The only thing I can imagine is plugging the analog hole but that is fundamentally impossible. At some point the photons of the screen have to reach your eyes. Even in the worst case scenario you can just use a capture card or even make your own by modding a display with an FPGA. It's futile to try to stop "pirates" with DRM. The only thing you can achieve is imposing even more restraints on your users.