The thing is, that this can work alongside humans. say you have 5 people bricklaying and one of those is this humanoid robot. its not a dramatic change from whats currently possible. They are a drop-in replacement.

Think of it as a stepping stone. Like automated cars, Fully automated highways are a ways off where traffic lights are no longer needed, however automated cars that work alongside the rest of the roads are feasible in the near future.

Yes there are better tools, its just a stepping stone to allow change. to force change.