Hmm...
I use microcore exclusively although, I confess, I virtually always run a GUI (core elements + jwm + wbar) on top of it and until recently I would have been a little iffy setting up the network by hand.
I always use a static IP address but I used to always set it up by running netcardconfig (now "network") from the control panel until I needed to learn how to do it the under script control (to boot different physical hosts w/different static IPs from the same media, w/o user intervention).
So yeah, a cli version of netcardconfig would be "nice to have", but probably not a "need" for many users..
I'm not sure it was a great idea to change the name from "netcardconfig" to "network", though.
Edit - 2013-12-04: I finally got around to writing such a script. I'll post it in the programming and scripting area shortly. Lee