In the realm of news, almost no one knows who Dennis Ritchie was. You can lament that fact (obviously, to anyone even remotely related to computing he was a figure of paramount importance), but it's ridiculous to expect the mainstream press to understand that importance.

Analogies are tenuous, but when Michael Jackson died, it was obviously big news. It was all over television. Nobody reported when Ross Snyder‡ died, even though his influence was of great importance. That's the way these things work.

‡If anyone didn't know, Ross invented the multitrack recorder, one of the most transformative tools in music production.