Forgive me, but is Netflix asking for that?
As I understand it, Netflix wishes to authenticate the device, and DRM their content. I'm not aware of anything beyond that (but I'm also not paying attention. )
Now you may have used the example of what might happen, but then Netfix seems a strange example. Surely Apple and/or Google are more likely players in that example?
> Now you may have used the example of what might happen,
OP said "What if", it's clearly a hypothetical scenario and not something Netflix is doing or planning to do