The article itself went into great detail about why it's all snake oil, and why nobody even WANTS real lie detection - not even the peddlers themselves.

Also, re: "The AI is probably right"

"When Coyote assessed her claim that she loved me, it reported that she was likely being deceptive—but its confidence level was only 14 percent. Hyde said that was well within the safe zone. “Your mom does love you,” he assured me."