The fact MS is still gonna support Windows 10 and bring there games to PC, still no point in buying a next-gen Xbox if all their gonna do is just port MS exclusive games to PC.
But let's be serious, the reason why Xbox One isn't doing all that great to begin with is lack of variety exclusive games and if they don't get killer app exclusive games for next-gen Xbox console, it sure won't take off. Next-gen Xbox Scarlet has to build it's 1st party portfolio practically from scratch. Aside from the big three, none of the exclusives MS tried this gen worked out and relying too much on Halo, Gears, and Forza. So their new studios have to start fresh with new franchises or new iterations of classics like Fable. Sony already has it's portfolio established with new franchises introduced this generation to add to it's classic lineup. MS has a long way to go to catch up to that. And with 3rd party being available everywhere, there will be no relying on 3rd party exclusives to differentiate your console. 1st party is going to have to do that and I for hope MS do well with 1st party into next-gen!
There's no point in having an exclusive to hardware, especially when Streaming and services like Game Pass is becoming a thing.
Lets be clear, what this really enforces is that Sony simply can't compete against companies like MS, Google or Amazon, because they don't have the right amount of infrastructure to get it working. Even if they do it's likely going to be much more expensive than say Microsoft's solution.
Can you explain how does a PS4 compete with a platform it is being sold on???