Who has this as a hypothesis? Go bother those people.
You need to understand the difference between saying
[God was not involved]
and
[there is no good evidence that God was involved].
It all comes back to the principle of parsimony: Do not multiply entities beyond requirements to explain the observed. God is not required to explain the observed. A model using observed mechanisms like mutations and selection can do it. If you invoke God in biology, you can do it anywhere. Including planetary orbits.
How did he accomplish that? All he did was provide some equations that describe how certain forces would produce certain planetary trajectories. That doesn’t actually mean God isn’t secretly behind the scenes doing it. To show that God was not directly involved you’d have to predict what would happen If God was directly involved, and then show that the prediction deviates from observation. But you could always just rationalize that whatever happens what God wanted all along. This is why the God hypothesis is unfalsifiable and useless as a scientific theory, it doesn’t predict anything, it just rationalizes all observations after the fact.
I find it absolutely fantastic that I as an atheist have to sit here and explain that to a Christian.