A video of a plane is somewhat abstract. We know what it means consciously, but there's nothing deep-rooted in our psyches from tens of thousands of years of evolution telling us what it means and speaking directly to the deep, lizard part of the brain. So it's easier to feel desensitized to, especially if you were a kid in the early 2000s.

A human voice hits different. We know what it means. The emotional register hits our lizard brains even if it's in a language we don't understand. There's nothing abstract about it, so it has a much stronger affect.