I'm afraid your link merely shows the misguided point-of-view leading to the MS malaise.
Look at your examples for server stuff: it would make no difference to the end user if those were running on Windows or not. IIS gets value from ease of .net application deployment, SQL server from playing well with .net, and Azure can deploy Linux because that department can't afford not to be in the embrace/extending mode.
From an MS point of view making the OS might make these things easier to deploy, but just because you're good at doing something doesn't mean other people are going to keep paying you to do it, and so it will be with Windows. MS are going to end up disadvantaging themselves given they have to duplicate a lot of work going on in the open source community.
If you use Chrome in Metro mode on a Win8 machine you'll see the extent to which Google are outplaying MS, as it apes the Chrome OS experience completely. Google are leveraging the Windows user base to reduce friction to them eventually moving to Chrome OS.