That's not even an ESPN article. ESPN, like many mass sports/news sites, automatically fills recap pages with AP stories. That was an AP story released shortly after the game. It was written by an AP writer named Mark Long, who then subsequently wrote similar articles, changing the focus around to suit different demographics. Sites and papers all across the country pick from AP stories for things they don't directly cover, so a paper in Cedar Rapids, Iowa might choose a version referring more to the Big Ten team, like this one. Mr. Long and other AP writers spit out a bunch of these bland recaps after all the games. ESPN's site automatically grabs one and fills the recap tab, which isn't read by many people compared to their exclusive content.
As far as ESPN, they had this exclusive piece, which was quite positive in every way towards Nebraska. And they published this quick recap/analysis on their SEC blog.
You mean, they chose different stories for different fan bases and their respective blog, you don't say? Now, which story is read if an impartial sports fan doesn't go to a Big Ten or SEC blog, and instead goes to the search the game score/recap/statistics? Is it the one that favors coverage of the SEC team and is that a coincidence?
Well, they have the cookie cutter AP feed and then an embedded box with a link to the ESPN.com exclusive. But ESPN probably programmed their algorithm to sort through the available AP recaps and find the one that hates Nebraska the most.