"The mother of all the virtues is the discernment that enables good judgment." Let's be careful to discern and distinguish what's what in the very complex institution we call "the church." Yes, it is "the church of God," and many of its core beliefs, teachings and practices can be called divine and trustworthy. At the same time, it is an institution led by men, some better, some worse, some wise, some foolish, all imperfect and subject to weaknesses of many kinds. So it's no surprise that some things come out wrong.

Human nature is indeed a very important subject, and that includes sexuality as a part of it. Christianity has a distinctive concept of that nature, and of what a truly pious or saintly relationship of the human with God should look like. And it's fine to leave it there, without too much detail, But alas, people's need for exactness, and the security of authoritative answers overcame their good sense. With discernment, one might see this, still trusting the church in much.