They will probably have one more that exclusive streams games. MS is looking toward the future, console gaming is not it anymore.
Phones, tablets, smart tvs, computers, VR headsets, the infrastructure is already here. Just like their are countless laptop makers but their all running windows.
Sony stans eat this up like a win but MS has basically bought them out, they now own almost all the major IPs of the last 20 years and in the next 10 years you will be able to play those games on any platform. Its only a matter of time before playstation will be obsolete because you can play/stream the game on other devices. Then in another 20 yesars when MS contols the market, they might release a MS devive that plays there games.
The game has changed console arnt the media hubs like they used to be. Back in the day people bought a PS2 just to play DVDs but now you buy a console and all you get to do is game on it. The entire concpet is gone when you can play the game on any smart device. It pigion holds sony to keep making hardware while MS moves on. Nintendo will be fine either way because of the IPs they have but Sony IPs are far and few compared to MS and Nintendo. This is a big win for MS.