Just speculating (I use zero automation when recruiting), but automated candidate ranking systems could well still look for signals that were valuable years ago, but no longer are. It's not a given that people using this stuff even understand the criteria under the hood.
Same story as SEO, I presume. Google surely understood their ranking criteria deeply, yet couldn't exactly win that fight.
Same story as SEO, I presume. Google surely understood their ranking criteria deeply, yet couldn't exactly win that fight.