The article is not about how the AI is responsible for the death. It’s likely that the woman would have died in the counterfactual.
The question is not “how effective is AI”? The question is should life or death decisions be made by an electrified Oracle at Delphi. You must answer this question before “is AI effective” becomes relevant.
If somebody was adjudicating traffic court with Tarot cards, would you ask: well how accurate are the cards compared to a judge?