This is exactly what I was wondering about. I would absolutely love if this allowed it to work on a PI, but if there's still some dependency on a module that isn't available on ARM, it's probably a no-go.
Then again, I've heard of people getting it to work on Chromium by grabbing bits and pieces from a Chromebook (which can play Netflix), so it's still possible AFAIK.
I'm actually OK with DRM modules so long as they follow a known, open standard (and yes, this can be done, much like encryption). Anything else is "security" by obscurity anyhow.