Gather3D Manual 3D Printer

I almost didn't even post this one since it is so incredibly backwards in thinking lol. Gather3d is a manual 3D Printer. By Manual I mean that there are no computerized inputs telling it what to print. Instead the controller is a human being who basically controls the knobs and directs the extruder where it will deposit the melted filament. Gather3D is certainly unique, but is there really a need for such a device? This ranks up there with the 3D Printed pens like 3Doodler we have seen in the past. Not really a 3D printer, instead it's more like an elaborate hot glue gun. Here are some images of the "3D Printer"

http://pierrepapet.com/wp-content/up...06/MG_2211.jpg

http://pierrepapet.com/wp-content/up...06/DSC0483.jpg

Interesting concept, but I don't see any really good practical use of this. Why not just use a computer to perfect what you want to print down to the millimeter?