There are other currents in Judaism, such as mystical based, or philosophy based (Spinoza), but they are a minority nowadays.
The mainstream Judaism has focused mostly on codifying rules for all situations in life, which has evolved into a semi legalistic framework of rules and their loopholes. So many loopholes... Like temporarily selling your belongings 1 week per year to bypass Passover rules about Hametz, etc.
God didn't make a mistake when writing the Torah. That "one weird trick" as you call it is as fundamental a part of his will as every else.
Also most Jewish laws don't come from God. Instead, they come from the confluence of two doctrines: first we develop fence laws to keep ourselves from accidentally violating the actual laws. But, once we have been doing something long enough, they become Minhag and given more or less the full force of law. Naturally, this leads to new fence laws being developed around them, and the cycle continues.
Frankly, almost no Jewish law comes from God, and he has no business telling us what to do.
In fact, I would go so far as to say no religious rules come from God! It seems pretty obvious that an omnipotent being in command of all the subtle and awesome phenomena of all of time and space is not going to concerned with whether some barely evolved apes on a backwater planet orbiting an unremarkable star in a forgettable galaxy, among innumerable galaxies eat shellfish and cows milk in the same meal.
Regardless of any personal cosmology rules or guidelines with respect to preparing and eating food in an unelectrified fridgeless warm to hot climate are emergent from the nature of the physical universe.
Debating whether such rules spring from physics, 'God', or a mere abundance of caution is fun for some.
> guidelines with respect to preparing and eating food in an unelectrified fridgeless warm to hot climate are emergent from the nature of the physical universe.
That sounds reasonable, but consider that the original texts give instructions that are quite specific, and leave the door open to all sorts of poor food habits.
Exodus 23:19 (and 34:26) -
"Bring the best of the firstfruits of your soil to the house of the Lord your God.
Do not cook a young goat in its mother’s milk."
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Deuteronomy 14:21 -
"Do not eat anything you find already dead. You may give it to the foreigner residing in any of your towns, and they may eat it, or you may sell it to any other foreigner. But you are a people holy to the Lord your God.
The mainstream Judaism has focused mostly on codifying rules for all situations in life, which has evolved into a semi legalistic framework of rules and their loopholes. So many loopholes... Like temporarily selling your belongings 1 week per year to bypass Passover rules about Hametz, etc.