I disagree, you can do almost anything with powershell. There isn't always an exact command for it, but like 95% of Windows configuration lives in the registry. If you know what to change, you can make powershell manage any setting. Which is similar to the way that Bash controls Linux, through modifying config files.

I do wish they had more/better tools for configuring the OS, but it works pretty well if you know the arcane magic of Windows.

And when it comes to being a functional script, I'd take powershell over bash any day. That's preference, obviously, but objects instead of strings makes it way easier to move data from one process to another.