[clueless]

> Not sure the full motivation behind this

This feature was one of the main reasons how Netflix movies/shows could be captured/uploaded to piracy sites in full quality as soon as they were released. People recorded the video output and uploaded them. This is to remove that path. Kinda obvious if you ask.

[progbits]

This is untrue. This method wouldn't get you the highres content, that's limited to higher widevine tiers. Pirates use other bypass methods and this will zero impact.

[Dayshine]

That's not how casting works. It's actually super locked down: the TV loads a netflix website and you can't create your own Chromecast receivers.

[fragmede]

How does VLC do it then?

[mvdtnz]

How is this different from recording video output from a not-casted stream?

[progbits]

It isn't, some people just like to post completely made up nonsense on topics they don't understand.

Edit: GP's username should have been a hint...