Other people have mentioned the high embodied energy of concrete but there is also a problem with insulating this structure. I hope the PIR wasn't just injected into the cavity because that is a recipe for disaster. The zigzag cross bracing you can see will be a massive cold bridge which will cause cold spots that will develop mould patches inside. Concrete is not breathable (it is mostly impermeable to water vapour) but hairline cracks develop which make it capillary active and will allow water to be wicked into the interstitial space containing the insulation and then through to the inner face to cause damp problems. A standard concrete wall needs to be a minimum of 300mm of solid concrete to remove the chance that a localised crack will form right through the wall. Usually when concrete is used it is purely for the floors and structural frame for this reason. You do see concrete clad structures but these are typically decorative panels with a capillary break behind, or they are damp and leaky old 60's buildings. Paint systems are not the solution as they tend to fail within 3 - 10 years and then they just trap even more moisture in the construction. Conventional houses get around this problem with a capillary break, basically just an air gap between the outer wall and the internal insulation which is on a block or in between timber structure. The alternative, which is well understood in central Europe, is to use breathable materials such as calcium silicate blocks and wood fibre insulation.

It looks like it forms a structure that only works in compression because of the way it is laid down. Even if it is glass reinforced concrete I don't think there could be a good structural interface between the printed layers. This is why it doesn't print the roof and they don't show how they dealt with the lintels over the doors and windows. These must have been installed manually. If the window openings had been 3d printed then they would have needed gothic arches to get around the 45 degree angle corbeling problem which is inherent in compression structures and the roof would have looked like a gothic vault for the same reason.

Another thing that is needed to make this into a dwelling that won't go mouldy, is some kind of vapour control layer on the inner concrete face. You then need to wire the place up, but there is the problem of how to hide the wires internally. You don't want electrical cables to go through the vapour control layer where possible and you definitely don't want any cable junctions where there is a risk of interstitial condensation making the electrics 'go fizzy'. Did they have to manually install dry lining over the cables? Are the internal faces rendered over conduit and then plastered?

I think their costs are suspicious as well, I don't know about Russia but in europe $227 would barely cover one day of time for 1 groundworks operative let alone machine hire and materials for foundations. A recent project we worked on had £20,000 installed cost just for the gravel fill for the groundworks for 2 small houses.

As an Architect, I think CNC machined cross laminated timber panels are more interesting because the embodied energy characteristics are much better and they are capable of forming diaphragm structures that experience tension such as floor and roof planes. In general flat vertical surfaces are not going away any time soon, because they are ABI compatible with Furniture v1.0.