For me it has nothing to do with either faith or salvation, that is a theological argument, and as an agnostic I don't engage in those.
What I look out, out of interest's sake, is how institutions work on a practical basis. We all would like there to be no abuse of children anywhere. Unfortunately that is unlikely to happen. Anytime, ever. So we have to look at how well either institutions and individuals deal with preventing abuse, what they do with it when it happens, and what they do to help the victims.
Up until the mid 80's or early 90's the RC church was doing very poorly on those measures. Since then they have turned the ship around. The rates of abuse in the RC church are now lower than other comparable organizations. That is the only real way to set the bar. Other than the dreamed of "no abuse", in the real world we can just compare them to other organizations.
But they you are free to look at how the media or popular culture looks at the issue. Despite the fact that public schools now see a documented higher rate of abuse than the RC church (perhaps 3X higher and involving way more children in absolute numbers), do we see the same public outcry? And if not why not?
Kurt Vonnegut was a bright enough fellow, and if one of the functions a religion provides is to give people community, what is wrong with that? Why is it a negative? Is the life of the lonely monk better than that of the congregant? If I join a camera club, or a soccer supporter's club, or a yoga class for community, is there something wrong with that?
He also uses the false dichotomy of reason vs. religion. While some of our more recent culture warriors (on both sides of the equation) use that approach, both research, reason and most doctrines show it is not true. A recent large study at MIT of all places tells us that most religions in the United States are not suggesting evolution is not taking place (I think the split was 89-11). But the radicals on both sides want to paint a false picture. Some of the great scientific and religious minds of the 20th century have pointed out that there is no real historic conflict between religion and science, (Gould, Einstein, John Paul !!, Benedict, I could go on), but some people gain both personal institutional profit from promoting this phony war.
Feel free to join the phony war and be a pop cultural follower. But if you dig a little deeper I don't think that is what you will find.