You can still root! I included the files in the video!
lol. I think its a much more crucial step to learn adb and fastboot commands if you are going to do things like root and ROM
I agree. Actually, when i first got my GNex, there wasn't a working one-click for the CDMA version. I unlocked using fastboot and rooted the old fashioned way through ADB.

A working knowledge of these two things are essential when emergencies arise.
Sent from my Galaxy Nexus using Tapatalk 2