Netflix removed support for Airplay
Now you won't able to use your iPhone or an iPod to beam Netflix to an Apple TV.
Airplay was allowed to Apple users to watch Netflix shows from one device to another.
The reason for dropping Airplay given by Netflix is "Technical limitation" and instruct iOS users to connect to a TV using built-in Chromecast.
AirPlay is a proprietary protocol stack/suite developed by Apple Inc. that allows wireless streaming between devices of audio, video, device screens, and photos, together with related metadata.
Netflix given statement to Macrumors,
"We want to make sure our members have a great Netflix experience on any device they use. With AirPlay support rolling out to third-party devices, there isn't a way for us to distinguish between devices (what is an Apple TV vs. what isn't) or certify these experiences. Therefore, we have decided to discontinue Netflix AirPlay support to ensure our standard of quality for viewing is being met. Members can continue to access Netflix on the built-in app across Apple TV and other devices."
Still, it is not clear that why Airplay support removed from the Netflix App, It was available since 2013.