Sorry, but they're not going to say "God did it." and give up everytime they find something they can't explain. They keep looking. It is what they do, and what they have always done. You can argue that it should be different all you want, but that's the way it is.
They will follow the evidence wherever it leads. You might like to be able to tell them that if that evidence leads them into territory already claimed by religious dogma they must stop there and not pursue it any farther, but you can't. The conflict between scientific inquiry and religious dogma has been there as long as both have existed.
Nobody said anything about *giving up* just because one believes that God did it.
I don't see that any of the great scientists who laid the very foundations of much of modern science felt compelled to give up just because they believed that God did it.
On the contrary, that belief inspired Newton to investigate the world around him. His rationale was that God was a god of order and that He created an orderly world and that through observation of it, certain patterns could be observed and learned.
I don't see that Christians and creationists who are scientists and believe that God did it give up either. There is simply no evidence to back up that statement.
The whole idea that one believing that the cause of everything is God's hand in it, producing a fatalism that stifles intellectual pursuit is a fallacy. It's only purpose is to discredit that belief by presenting those who hold to it in a false light.
It's not true and it's not based on truth.