Netflix themselves probably couldn't care less; they know that everything they offer for streaming will be available for pirating the second its released, with or without DRM; people have Netflix because its convenient, not because they cannot pirate their content.
But there is one real benefit of DRM, cracking it is illegal. Of course my understanding is that they would get the exact same legal protections here if they just XORed every byte with 0x42 so it doesn't justify the spend, user inconvenience and complexity of current DRM systems.
If so you can reuse everything that the satellite TV industry (one single feed being broadcast across the entire continent) for their pay-TV DRM.
You have to handle key rotation and a thousand other variables, it's a very different environment.