There are definitely a lot of variables that have to be taken into account but its looking increasingly likely that God created trillions of planets in the universe.
That said the article does a pretty good job of pointing out the things that are problematic for human life on other planets.
I think it is hubris to believe Earth is the only planet with life, even intelligent life.
I also think an omniscient God has more “capacity” than just one planet & one species in a vast universe.