Nielsen's unable to offer value to streaming services. Their technology and service only work with traditional broadcast television. They would like to see streaming services to send them their data so they can sell it back to them. Streaming services don't benefit from such an agreement. Netflix has been in the streaming business for 10+ years, as has Hulu. For Nielsen to say they can tell these services how streaming customers behave is a bit too presumptuous. Keep in mind, some of these new customers have never subscribed to broadcast television. There's possibly even a generational gap in their behavior.