But we can say that if it will be overturned, it's already wrong. (unless the overturning is the wrong one, yadda yadda)
We do not have to wait to use basic logic.
And judges do not always work on "the best of our society's knowledge". Some judges have massive biases. They make incorrect rulings that we can see, and sometimes the incorrectness is not only obvious but objective, like when multiple judges are on a case and some dissent; they can't all be right.