There have always been an infinite number of ways to deliberately behave unsafely in a car. Why did we only start caring now?
Edit to propose an answer to my final question: what we have here is a confounding prior. If your prior is "Tesla Autopilot is Inherently Unsafe", then the driver nag feature becomes understood as a safety feature ("Tesla Autopilot Needs Supervision"). Thus, a failure of the driver nag becomes evidence for your prior, magically ("Tesla Autopilot is unsafe BECAUSE the Driver Nag Can Be Defeated"). And thus the clickbait.
(And FWIW: I continue to believe that this recent crash did not in fact involve autopilot at all, but we'll see.)