It shouldn't be such a shock that people prefer text. Text is the universal format. The vast majority of programming tools operate on it. When someone comes up with a new tool, if they support text and STDIN/STDOUT/STDERR then that's it, they're done.

PowerShell sounds great and I'm sure there are some people who are very productive with it but it's ultimately a silo. It's never going to be as low-friction to support as text.