Nobody who’s informed believes that the center is infinite, the general public on the other hand has been told the center of a black hole is a point of infinite density by ‘experts’ for nearing a century. It’s the same mistranslation that happens when a lot of science is published in media, it’s easy to just say what an expert knows but it’s a lot harder to explain it well. The expert knows TONS of nuance on their subject while the rest of us don’t have nearly enough time to become as informed as they are.