[randrews]

This would only make sense if Fox were the only trusted news outlet (to borrow the article's term) that Google indexes. Since it's one of a whole bunch, Fox is really only hurting themselves here.

People will go to Google to search for a story, they'll get a bunch of hits to news sources that are not Fox (and are not blogs, to keep this author's mother happy) and will read those instead.

The choice isn't "Fox or a bunch of blogs", it's "Fox or CNN/BBC/every-other-news-outlet-on-the-planet".