Fox News are assholes? LOL. That's their goofy morning show. They report on a lot of silly stuff and are usually share their opinions. You have to be aware that's the type of segment, isn't serious unbiased news. They are competing with Good Morning America, Regis, etc. Someone out there stated they felt Mr. Rogers was a bad influence on kids, etc, so they had fun with the story. After listening to all that they might be on to something. He may have made kids feel to relaxed about themselves and take away a sense of urgency to better ones self. Like, oh, I'm special, even if I get bad grades. I'm special just the way I am. Etc.
Also if you watch the ENTIRE video you will see the present a variety of views and opinions on Mr. Rogers, including someone saying they don't think he did anything bad.