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5 Countries Just 3D-Printed Homes in Under a Week: The Future Is Here - Yanko Design
(www.yankodesign.com)
No they didn't print homes in a week. A shell of a home is not a home. A stick built frame goes up in a similar amount of time.
IIRC about 20% of the cost of a new home is framing. So even if they make it free, it's a nice little cut, but not world-changing.
The technology itself is still interesting. Maybe you could use it for water works or a chemical plant - things where a large, weird-shaped container is the goal.
Brick and mortar is an addative process🤦