I don't totally disagree, however the media has a responsibility to report accurate, factual, and sound advice. McDonald's has no real responsibility to its audience, the media does. If I hired a trainer and joined the gym and he gave me all sorts of fake advice based on what I wanted to hear and I ended up fat I'd be blaming the trainer for that also
Most people are not health experts, and are generally, I'm sorry, but "not that smart" - they turn to the news to get world news. When things go south there's a responsibility to not misinform people and cause mass hysterics