Earlier quoted context omitted.
Because their developer tools are pretty good and finding jobs as a .NET developer is pretty easy?
It's pretty easy for non .NET jobs too. Their developer tools are pretty good for their own platform (but JetBrains actually makes great cross platform tools, some of them are proper free and open source, VSCode is playing catch up). Their C++ stdlib implementation was sucking balls for decades. Their (the dev tools') scriptability was horrible. PowerShell is nice, but it came too late, and it was too server focused.…
EDIT: just noticed the article says it was also added to 2013, but my 2015 doesn't support it so idk.
I can conceive PowerShell being good as a scripting language, but as a day to day terminal? That would my hell. And the fact that they are forcing so much on it in win10 doesn't help.
They do produce some great things sometimes, I agree, it just doesn't average out as positive IMO.