I think the issue here is that we've been fed a high-sensationalism diet, so our brains are acclimated to in-your-face headlines. Perhaps if we detoxed our brains a bit (by using this app exclusively for a week or two), we would be able to recalibrate our expectations for what seems "interesting".
This is sort of like how you recalibrate your tongue to a low-salt diet if you stop eating salty food for a few weeks.