Powershell is great, but it'd really benefit from a GUI DSL for building UIs and charting data (dotnet is a lot of effort), increased speed (it's pretty slow) and libraries like pandas for data analysis and something like the GNU scientific library available. If those things were all built-in to Powershell/Windows, we'd have something pretty cool and unique, which is the ability to quickly and easily build little apps that don't require installs or anything like that. Just copy your script over for your buddy.

As is the theme in this thread, there's just so much I'd expect Windows to do that it simply can't do. Powershell is basically designed for Devops and not just normal business users unfortunately. It could be so much more.