The article is vague, but I suspect this is referring to FMVSS-127 which makes certain active safety features mandatory in 2029 and also increases the difficulty of some required to pass scenarios. The new scenarios require responding from higher initial speeds which effectively requires longer sensor ranges and/or lower latency.
There is a big difference between "something like" and actually passing the tests, I would be surprised if any non vision based system has the reaction time needed to pass the new pedestrian tests.
