They have already explained the point. It's reducing the number of people who are incorrectly told they may soon die a horrible death. If there are better ways

They have already explained the point. It's reducing the number of people who are incorrectly told they may soon die a horrible death. If there are better ways to prevent that than a human-in-the-loop approach, feel free to propose it. But having watched it happen a couple of times, I'll note that actual doctors deliver cancer diagnoses in person, so it's not unreasonable to think that should continue to be the case.