I still don’t see how the math works out...how do you give away AAA games that cost around 100 million dollars to make (not counting marketing cost) on top of a 7.4billion dollar acquisition and still profit.
A 15 dollar subscription isn’t going to do it as we see with Netflix (which is now 18 dollars), and they are trying to cut off people sharing accounts. Sure, Microsoft has the money to BLOW now in terms of this service being a loss leader but the only way they make even on it is if they essentially get the entire PlayStation and Nintendo fan base into the eco-system which is still highly unlikely.
They are counting on this acquisition tripling gamepass subscribers
I look at it like this.
Microsoft would PREFER that you sign up for Office365. You get all the Office applications updated incrementally instead of once every few years, and functionality nos at its best.
However, they'll still happily sell you Office 2019 right now as a standalone product, because they know not everyone wants to buy completely into their ecosystem, and because they'd really like your money.
Ultimately, there's nothing proving that the XBox division is somehow exempt from the same business practices. One way or another, they want your money. If it makes the most sense financially to have some games be available in more places than just Gamepass, they're going to do it. They're just not at any obligation to divulge that information in full at this time, regardless of how anyone feels about it.