The idea that there is a creator was a 'a priori' zeitgeist of these earlier researchers. Of course there is comfort in the thought that the Universe is just fine, whether we research it or not. Unlike the great medical research our lives dont depend on it.
As to the now very stable setup of the solar system, the perturbations and the theory about it is enlightening. Looking at the asteroid belt, its gaps, spacings made the discoverers glad that we have Jupiter around, to create a depositoire of all these body that cratered our neighbourhood earlier.
Uranus, Neptune, Pluto even, might have been predicted*, discovered by the mutual orbital perturbations they experience, but an easier guide was the modified Bode Law, which predicts the orbits with 5% accuracy.-- EARTH 10, Jupiter 52, with .o1%
Great insights will be gained when we develop the ability to analize accurately the spacings of the exoplanets.
In this way proposing a theory about Creation is better then one (or many) about the Creator (if any), called religious doctrine, a pure guessing game.
thats why we must, have the right to challenge religious beliefs, after all, we challenge scientific theories all the time, it's called peer review, ultimately progress.
* now in doubt.