Exactly. Science is well within bounds in assuming God created the heavens and the earth and sustains them. Narrow minded ideologues blurt out that this is "unscientific," but they have no evidence to back their claims. Neither do you.
What is unscientific is to make the claim, say it is proper to assume it to be and leave it there. Which is exactly what you do.
Form testing that would facilitate proving your assumption.
Do that testing and draw conclusions from that testing that support or refute your original position. Rework your original assumption(if need be), form tests, draw conclusion from them.........wet, lather, rinse, repeat.....
You, in essence, state that making a claim coming from feeling is all that is needed to qualify it as scientific. Stopping there is indeed unscientific. Take notice, it just doesn't Fit.
I would offer to you that what you do with this topic is like starting your engine at the Indy 500 and never putting the car in gear to run the race. Then still claiming you ran the Indy 500. Claiming it is proper to assume you ran the race because you started your engine. AND THEN, claim anyone that attempts to see anything other than the 'start your engine' portion is wrong for doing so.