This is a good news for Civil Engineers. They won't need much calculations manually with the set perameters of this 3d printing machine.
Technology keeps on surprising and is another surprise from the designers of this 3d building printing system.
It would reduce the labour cost in the initial stages of a building prpjects because there will be not much need of human power as the bases would be build automatically by this machine.
And i am sure there would be certain procedures to make the building strong enough to withstad the time and other factors compared with the other methods of building bases for a building. And it looks like used for small buildings constructions. May be in future there would be more precise and bigger machines like this to make huhe buildings by 3D printing.
By the way you did good hunt for today.
Best of luck for it.