It's cute that you assume good faith. Here is evidence they are operating in bad faith. They allow users who are being harassed to disable replies but not quote tweets. These quote tweets are then used as a vector of further harassment and dogpiling. This happened with Steven Pinker for a time period and Amber Heard. They are choosing virality over preventing harassment.

  "Assume you can hire 100,000 people. How would you maintain consistency among all those 100,000 people. You'll get huge variance in the kind of decision making from each of those people."

This is the perfect solution fallacy. Perfect solutions are not the bar. Timely response to reports and human review is the bar that I expect of them. And they're failing to meet that bar.