Board Thread:Questions and Answers/@comment-88.0.101.31-20160810215834/@comment-27384850-20160826035110

Kawahara himself is a pretty diehard KiriAsu fan, I doubt he'd break them up or anything like that.

As for Flere's bias, he was a big fan of Alice while not so much a fan of Asuna (and subsequently her relationship with Kirito). He seems to have downplayed things regarding Asuna while boosting things related to Alice. At one point he even made a TL note about Alice's feelings that was directly contradicted by the text itself. The part about Alice speaking like Kirito's husband was also incorrect (the term she used is commonly used by house guests in Japan), and he notes at the end that the term Kirito uses to refer to Asuna has some implications about their relationship when in reality it does not do anything of the sort (quite the opposite in fact). He let a lot of his own feelings influence what was and wasn't included in his summaries, which in turn seems to have influenced some of his readers and caused a lot of people to dislike the WN ending.