I seriously doubt 3D printed homes will ever be disruptive in any real sense. Effectively, it makes frame building easier. But that has never been the limiting factor in construction. All of the wiring, plumbing, etc is what is most difficult about building a home.

This company intends to do away with all that by just building a basic structure for people that need housing the most. Their "printer" is very cheap and fits in a shipping container. This is pretty much best case scenario, and it still would be upstaged by a shipping container of cinder blocks. The use case for 3D printed homes is luxury housing with funny shapes sold for high prices.