I would argue that the Western world largely didn't care, but the journalistic class which controls a large chunk of what people think is happening had a tantrum. This was not a "look at what Trump did this week" tantrum, but rather a "these guys just killed one of us, YOU HAVE TO CARE" tantrum.

You can tell it's this because the journalists themselves don't really care that he died trying to expose what is happening in Yemen - they only care that a fellow journalist died a fairly gruesome death.