In all fairness, it does seem like very few people would watch the news if it wasn't at least a little sugarcoated. But is there an optimum balance there as well?
Don't want to derail this into sincerity completely, but do you think the language of sincerity, or at least the how-tos of being sincere, is less and less known? If you were never exposed to public, sincere interfacing, or very rarely exposed to it, you would reasonably feel more inclined to cover up the parts of you that would otherwise manifest as sincerity - seeing as that isn't what people do.
This is what would set the stage for a "new sincerity", seeing as it would become something to be rediscovered: "Wait, these feelings that I have been treating as negligible and fruitless can actually be expressed directly, honestly, openly? I don't have to relegate underground and juggle them between holding tanks?"
If we are exposed to people forcing/contriving certain emotions, do we learn to force/contrive them as well? As this pertains to the news, how does this forced/contrived emotional reaction alienate us from the real goings-on?