It's not odd at all. Number of times I've watched the news in the last 6 months: ZERO. I knew Gabby disappeared because I'm a member of many hiking/camping groups, but I never bothered reading the details until a few days ago. If I had not been in those groups I would be clueless about the details of her case still.
This from a person who's been a member of this site for many, many years. There are still a lot of people in this world who don't pay attention to the news, don't delve into sensational stories, don't frequent social media, and they're probably the better for it because they didn't just spend the last four days glued to a laptop, ignoring their real life like I just did.