Yes, I don't understand it either. "No ugly DLLs" but you have to run everything in Node.js. There are a few technologies that have tried to do something better than Unix shells, like Microsoft's PowerShell. It has a lot of failings, but it gets a lot of things right. I am always stunned when I see Windows folks stumbling around in cmd.exe when PowerShell has been installed standard for a while now.
There's still a lot of room for improvement.