>One of the first things they showed us was a photo of the parents who had protested against the schedules devised by the algorithm. Nearly all of them were white. The majority of families in the Boston school system are not white. White families represent only about 15 percent the public school population in the city.
followed by:
>Optimizing the algorithm for greater “equity" also meant many of the planned changes were "biased" against families with privilege.
Since the author didn't clarify what they meant, or differentiate between them I am assuming they used the two terms interchangeably.
One funny thing I noticed. You could argue that since white families only constitute 15% of the public school population these changes disproportionately negatively affect a minority group.