I've noticed this attitude among those who tend to use sysadmin-minimizing features of the internet, such as cloud hosting. There's still a whole world of real server out there, though.
I tend to use a shell for system interaction more than scripting. In that regard, I give more importance to interactivity enhancements. On the other hand, I have found myself using bash to automate simple things in our company testbed. As soon as I need a datastructure more than an array, or recursive functions, I jump to lua.
If your primary job is to be a sysadmin, then Bash is Required Reading.
My comment in reply to http://www.iheartchaos.com/post/16393143676/fun-with-math-di... is one example.