Like I said, Disney can put the shows on any channel it owns, so that's not a problem for them.
Yes, they could put any show they own on any network they own, but then, they'd be stuck footing the entire bill for the show, rather than have someone paying most of the cost.
Here's how television works-the network pays a license fee to the studio (even if that studio is a corporate sibling), that covers upwards of 60% of the show's budget. The studio then covers the rest. The network, pay tv channel, and now streaming service, (hopefully) gets it's money back selling advertisements for the ad supported networks, and monthly subscription fees for the pay tv services. The studio gets it's money back by selling the show beyond the originating network/pay tv distributor, such as foreign networks, VOD, and of course dvd/blu ray. If you recall, Stargate SG-1 seasons started on Showtime, and then MGM sold the episodes in syndication a year after they debuted on the pay channel.
There really is no reason for your concern that this project will be limited to Netflix subscribers only. I already pointed out how Sony is releasing House of Cards
on disc this month. It will be exploited beyond their pay tv audience. As with SG-1, the pay tv subscribers will simply get it first exclusively.
Here's an article I read tonight and thought it might be helpful to you.