The reason Xbox is changing so dramatically is because dedicated consoles aren't seen as the future but as a fragment of the past that is only going to be mainstream for a little while longer. Microsoft is betting on the cloud, it just hasn't happened as fast as they thought it would (because most of them live in a tech bubble).
They're probably right in the long run, though, and it's going to suck because it's going to take "owning nothing" to the next level. The icon for your favorite game might not even be there when you log in to your cloud gaming hub and software companies want that future so bad they're salivating over it.
Another ecosystem based around hardware would be seen as backwards and probably meet resistance from the establishment. Sony and Nintendo will be the last major players in that space.
