I agree that it is not nearly as simple as we have been told, After working for the DOD in my younger years, very few things are simple that do a complicated job, There are probably many things that can go wrong, It's surely not an "easy bake oven".
The good thing is that they are using it to make prosthetic parts for people who were blown up and burnt up in Afghanistan and other places, I posted this before, they made an ear and a finger for a few folks a couple weeks ago. They can make a duplicate and cover the prosthetic with a copy of the persons actual original parts, "I guess from their photo's or the other ear or leg. Even disks and bones would be possible.
On the gun side I am thinking that suppressors will be a hot item with this Gizmo, that is a rather simple thing to make that can be attached with a threaded bracket, and a metal tube, that can be bought in a Home Depot.
Because of legal reasons, I am sure no one is talking about it, but I would bet that someone has tried it.
Just like Hacking websites where you can find movies and applications, there will be sites online where the blueprints will be available for just about anything imaginable, from bootleg cell phone cases to plates for counterfeiting money, "I saw that on a TV show already". This is a double edged sword that can easily get out of control, making all sorts of copy's of things that will be difficult to tell real from forged, or lower halves of pistols like the FN, or a Glock, can that work well enough to become a problem?, If the serial number is on the frame and a slide can be purchased from a hundred different places, is this a problem for the Govt. going forward, and would it function?It should be interesting to watch. If they can get the slides and barrels, or just forge them, if it is possible, it would be taken much more seriously .
I am just throwing out some ideas, just to see what is actually possible now and in the near future. If a real pistol can be copied then I can see the Government being worried, because the rest of the parts would for a time at least be available to purchase although illegal to make, Criminals don't care about laws, which might become a legitimate problem.