I think the reason is because this isn't a code-based library, it's a command line client. The portion that is more code-based (the css library) is chock full of code examples, and all the commands are listed out on the front page.
After looking it over, what kinds of other code examples would you want to see?
For sure. I do work mainly on backend dev, and the roots-rails and roots-express plugins help me out a decent amount. Roots specifically is targeted to front-end though. If you have any suggestions on how to tie this together nicely with backend stuff I'd be more than happy to hear it though!
My biggest thing right now is getting the livereload to work with rails, specifically through pow. I'm sure there's a way to do it, just have to figure it out...
Hope that helps.