The hypothesis is that it does just as good (really bad) job of preventing it while encumbering legitimate customers less.
> House of Cards was only released with web DRM
then how has the experiment been performed? Or did you mean to say the show was released without web DRM?
In fact, I'm not sure that performing DrJokepu's experiment as stated would prove anything: releasing episodes of HoC without DRM would have little effect, as they have been copied despite not having been made available without DRM.