SBF: For many people the idea of God explains why there is something rather than nothing, because he is understood to be a being outside of material reality who is the ultimate cause of everything that exists. For many people this makes more sense than simply asserting that reality exists and no further explanation is required or even possible.
Who said "no further explanation is required or even possible." People are searching for answers and Krauss's "something from nothing" is still far from accepted, but it's progress. We will get it one day. We will laugh at primitive understandings of dark matter/energy and the like.
So man created the gods to explain rain, lightning, sunshine, etc. Even as man developed, gods were a great explanation for anything and everything. Then science developed enough to start making gods less needed in explanations. We then had the god of the gaps- gaps in our understanding of how things happened.
Slim, we grew up as a species to the point where we realize that the god explanation is flawed. It just pushes back one level at the question of how we came to be. We would still have to explain how "God" came to be or accept that something was eternal or came from nothing.
I struggled with "If that eternal something had to be a god, is it because of needed care and guidance?" Well, between sincerely turning to God for guidance and winding up in a dangerous mind control cult, and looking at all the thousands of children torn away from their parents to die in a tsunami, and seeing senseless pain and suffering among people, I concluded that a caring and guiding god doesn't exist.
Man is still just living with the ideas of that same god who made the rain and lightning. But a group of control freak priests in the middle east twisted at the idea of god enough to add that "He" was nothing but good. Before all that, even "Jehovah" was a warrior god. And then it got worse- politicians in Rome trying to salvage their empire added Jesus to the mix and "How dare you attack Jesus?"
When a person tells me their prayers are answered, and that's proof-enough, I just fall back on tsunami victims and suffering humans and my own cult time. Yeah, that's proof enough to me that praying for small enough "miracles" leads to coincidences. And we are grown-up enough to stop believing in a tooth-fairy-type of god.