They are trying to get their fingers into as many of the big pies as possible - all of which I think is in some way to try and bulk up usage and push their Azure platform hard - I mean look at how they've taken over GitHub (and it has had more services downtime since than I can remember).
The problem is they are flogging a lame horse, Azure has neither the ease of use or maturity of Google or AWS's cloud offerings and their APIs are typically a joke with documentation that does not even match the requests/responses.
Azure is a lot easier to use these days. It is quite nice. Adobe and them partnered and they moved/are moving Creative Cloud from AWS into Azure. Not wrong about the documentation though but they do run faster than AWS. AWS has a number of bottle neck issues and DDOS and IP blacklisting issues at the moment.
Xbox cloud though is VERY good built around Azure and that is probably the best online gaming platform around.