Are they going to separate the content of each platform within the app? Sounds strange with the article mentioning you will still be able to subscribe to each service individually.
If it is like in other countries then they'll have different subsections. E.g. here in aus we have disney, a section for star+, a section for espn. I guess they'd gate them individually behind different subscriptions.
Down here, it's all 1 subscription and you access (and pay for) everything even if you only wanted access to one thing.