An act of God is a disaster that leaves a path of destruction in its wake. It can be violent and unexpected or slow and insidious. Earthquakes. Hurricanes. Tornadoes. Tsunamis. Floods. Blizzards. Drought. Fires. Famines. Pestilence. Disease. These events are seen as being unpredictable and unreasonably severe. They leave broken families and broken hearts behind.
So, yes. I guess adoption is an act of God.