The point you miss is that we can see the effects of how oxygen gives life. We don’t see the effect of how God gives logic. We can see how humans, and indeed other animals to lesser extent, can use logic from secular means. There is no need to invoke a god to explain how humans followed trains of thought through history.
We don’t need a god to understand how humans first realised how to make fire from creating sparks with flint. There is no need to invoke a god to understand how crows first realised you could use twigs to hook insects from trees for food. All it required was a greater brain power for some to realise it and others to be taught. There is no god necessary for a step between as there is between the needing of oxygen for respiration.
