The correct answer would be: The system we built learnt that association from the public discourse, and we neglected / decided not to remove said association.

The correct answer would be: The system we built learnt that association from the public discourse, and we neglected / decided not to remove said association. The reality is that while most of Google's search system is autonomous, a lot of work goes into making adjustments to avoid a negative perception of Google. Removing politically incorrect phrases from autocomplete is an obvious example.