You missed the point.
This isn't about being able to install PowerShell on Linux as some kind of bash replacement. This is about being able to have an agent on Linux that talks to the same "Desired Configuration Management" system you're already using on Windows servers, and have already scripted things in PowerShell.
This isn't for you, because you clearly aren't using Windows server with Microsoft's DCM solution, and you aren't looking to extend that solution to Linux instances. This is the Microsoft version of Chef or Puppet, with a cross-platform client. Using PowerShell.