Well this is already sort of the case. But instead of Netflix it's Hulu. Hulu was the sort of agnostic platform that included live TV and needed to be able to VOD all the shows available on live TV networks. Now, you bundle Hulu + ESPN + Disney. Until every company wanted their own streaming service, Hulu was where you could find broad network content. And they even have commercials, so it worked great by classical TV metrics.
The issue is, Hulu created content is meh. Hulu's UI is meh. And Hulu doesn't aggregate ESPN+ and Disney+ in a single pane. And now everyone wants to own their own cut of the streaming service pie. So there was a push for this type of service that saw the incumbents rallying together against Netflix. For whatever reason that wasn't good enough for them, so the idea that now they will just partner with Netflix seems unlikely.
The issue is, Hulu created content is meh. Hulu's UI is meh. And Hulu doesn't aggregate ESPN+ and Disney+ in a single pane. And now everyone wants to own their own cut of the streaming service pie. So there was a push for this type of service that saw the incumbents rallying together against Netflix. For whatever reason that wasn't good enough for them, so the idea that now they will just partner with Netflix seems unlikely.