You don't need the terminal one bit to use a linux system the way an average person uses Windows. Install and go. Oh wait, "install" is something users of Windows dont have to do...
For most normal people, using Word and Powerpoint is pretty important. let me know when I can use and do word and powerpoint stuff on Ubuntu. No, the Librestack isn't a replacement.
I know it's not perfect yet, but the better and better it gets, the fewer reasons Microsoft is giving people to stick with Windows. I wouldn't be surprised if Microsoft stopped selling the local version in a few years.