I agree that placeholders are required in science until adequate explanations emerge. Calling the placeholder "god" is not a scientific study of god.
~~ Paul
I think I said, more than once, that science cannot study God, or the supernatural. It can study the effects of God in the real world, although it can't actually prove that God is involved, using science.
Take ID. It can show that no known natural process can create the structures found in nature. It can infer from similarity to designed structures that the structures were designed. (I'm not saying this is a correct inference. I'm just discussing the thought process.) They can even say it was designed by God, and all the evidence would fit the theory.
However, in truth, it cannot say anything about the designed if investigated. If I say it's God, and you say it's the Flying Spaghetti Monster, and someone else says it's the collective force of conscious minds waiting to be born ( a vaguely Buddhist idea), science can't distinguish between them. The designer is acting outseid natural law, away from scientific investigation. By faith, they believe it's God, but that's outside of science. All they can say based on reason is that there was a designer.
Similarly with Kashrut. By science, they can observe that trafe eaters die more often, and they can assert that there is no natural cause. They can create a theory that there is some supernatural trafe-hater who kills people, and they can call it God, but if someone else says it's the Pig God and Shrimp Goddess, protecting their friends, science can't tell.
On the other hand, science can continue to investigate the effects, and search for natural causes. Once someone notices that people who put their bacon in the fridge don't die from it, they might come up with a third theory that there are little tiny animals that live in pigs and humans, and that make people sick. At that point, the disease theory, although complicated and sounding ridiculous, might replace the Pig God theory, because it makes better predictions, and let's people eat bacon.