Earlier quoted context omitted.
Maybe it changed its mind or maybe it drip feeds the laws over time since it knows humans could misinterpret laws for things that do not exist yet. (disclaimer: completely agnostic)
or give laws that are simple to articulate, but cover lots of future scenarios via precedent and emergent behavior. the golden rule has held up pretty well (in terms of being applicable, not in terms of being adhered to.)
You know there are mitzvot about which positions of the priesthood should or should not be allowed to eat specific varieties of grapes (that only grew in Canaan) during specific growing seasons, right?
Those are pretty concrete rules, that don't really generalize. The sort of thing you'd expect to see matched by modern equivalents. And yet, these are believed to be literal divine law, just as much as "thou shalt build an ark" etc. is.
Also, there are separate mitzvot for kosher-ness rules for basically each kind of animal, starting with general classes, but then getting increasingly specific and obscure/unlikely-to-be-eaten-by-humans. (Almost exactly as if a series of people were actively pestering a High Priest with trivia questions like "but when is it ritually-impure to eat flying insects, though?", where they then felt the need to make a ruling.)
If you're curious: https://en.wikipedia.org/wiki/613_commandments#Canonical_ord...