Having actually worked in news, I can safely say that the Chyron operators are not always the sharpest tools in the shed. I never had a mispunch THAT bad on my cast, but you can expect a screwup at least once every two weeks on any given show.
He's got the put-upon sigh and eyeroll down pat, so you know he blames you for the mispronunciation. "Why should I change my name? There were Molesters way before there were molesters!"
Maybe it was a copy and paste error where "Child Molester" was saved on the clipboard from a past story. Though I admittedly don't know how these things actually work.