The presentation seems quite balanced. Probably not the spin that Breitbart was hoping for.
Weighting results toward “authoritative voices”, delisting results which could damage their advertising revenue, or as they claimed in the infamous all-hands meeting, bending the curve of political discourse in the country to suit their personal world view.
Given the power inherent in Google’s near-monopoly on search, I’m personally a lot more critical of potential political or editorial influences over Google’s methods for listing, ranking, and delisting content.