It is really odd for someone at a media-watchdog outlet like Deadspin to be surprised that an NFL media property wouldn't be reporting on things that could damage the reputation of the NFL.
I had the same job she did but for the NBA, before the league sold its website and NBATV to Time Warner, which moved those operations down to Atlanta. I worked for the "news desk" but since the site was still owned the by league, it was obvious to everyone that our job essentially was to publish promotional material, not actual NBA news.
Just a minor example, but remember the Spurs-Suns game that bloodied Steve Nash's nose? Web editors were told not to use any photos of his bloody face, even though there was this one iconic photo of him that was everywhere that night and the next day. At the time the league still thought it had an image problem because of the Detroit brawl, and didn't want to glorify violence, seem thuggish, etc.