I agree with you, and that's why the officer names are redacted. Things we might at first glance think are because of biased/racist/sexist cops might have good explanations. That said, visualizing this data does surface outliers really well, and each outlier should be further investigated IMO.
It all starts with getting all this data into one place, scraped from the thousands of county court records sites. It's a big task, but this data is priceless.