I'll have to see how this actually works, but it's not clear that the news itself will be tailored to the listener. For example, I might pick "Science News" and "Arts News" but not "Sports News" and I don't see that as putting myself in an echo chamber. If the categories were "News for Democrats" and "News for Social Conservatives", then that might be a concern. Also, NPR is more than just news. I regularly listen to NPR programming that isn't entirely aligned with my own world views.