Chapter 10 refuses to let salvation stop at the isolated individual. Because the Fall destroyed the first family and corrupted lineage, restoration is incomplete until a true family appears in history.
This makes family restoration structural rather than optional. A nation or world centered on God cannot be built from privately saved but relationally disordered people.
The claim is also a critique of thin religious victory. If faith produces devout individuals but not restored households, it has not yet reached its full target.