I think PowerShell was a great idea with weak execution. The real issue is that the OS and many Windows services (like IIS) weren't built to be managed via the command line. They're gradually adding support for it, but not in a standardized way.

Configuration and management on Linux is anything but standardized, but it's almost always as simple as changing the right line in the right file in /etc. Also, the ecosystem is so large and mature that tools have been built to make things simpler.

You can manage Windows machines via PowerShell, but that doesn't mean it's easier in practice than SSH and Linux -- particularly given the toolsets (Chef/Puppet/etc) that have been created around it.

Because almost no one actually does that, despite it existing, and tools and documentation for it on the net are very sparse.

In my experience all the windows sysadmins I've met were doing EVERYTHING by commandline. Either through netsh and so on or they memorized .MSC commands for opening a particular GUI and then use a keyshortcut to flip a switch or so. You can hardly see what's going on