The distinction I draw is that the truth value of any of these statements doesn't abrogate any good a particular religion does for an individual, nor does it measure the worth of the religion. An example comes from Catholicism.
I have heard that some previous Pope allowed that evolution was true and the creation story not literally so. Were you surprised that Catholics didn't abandon their faith practice in light of this new information? Hardly. I propose that the truth or falsity of Genesis was not how the religion was evaluated by its followers.
If I were a chef who learned my trade at a culinary school where they taught the phlogiston theory of heat, but still managed to cook amazing meals, how should I evaluate my training? Would I say the cooking school was false and without value?
I remember being taught the Bohr atomic model. It explained a great deal about chemical bonds and so on. Later, I was told that the model was false, or if not outright so, less than the more developed picture from quantum theory. Value is not always so easily pinned on true versus false.