Well, I think shell scripting is fun, so I might agree that you'd hope users who had spent at least a little time using the CLI _could_ write a bash script. That said, I suspect a lot of people, devs included, just haven't needed to automate/batch things outside of whatever their normal toolset is - and don't know what they're missing. Portability makes shell scripting especially nice - instead of fiddling with rbenv or npm or pip so that your elegant little script can run, your handy.sh is going to be easier to move to another box...