It's moving the goal posts a bit to suddenly restrict this discussion to only servers, no?

There are plenty of Windows servers running plenty of businesses. They may not outnumber non-Windows servers, but I don't think "majority" has to be a prerequisite for "flourish".

There are also buildings full of Windows clients...

This discussion is about PowerShell, which is primarily intended to automate server management and has been ported to Linux, presumably, for the same purpose.

> This discussion is about PowerShell, which is primarily intended to automate server management

Many (me included) find PowerShell extremely useful for automating any sort of Windows management, client or server. So I disagree that the discussion should be implicitly assumed to be limited to Windows servers.