Those features exist. The article mentions that it is not specified whether or not the driver assist features were even in use in this instance.
> One of the men killed was in the front passenger seat of the car, the other was in the back seat, according to KHOU. Harris County Precinct 4 Constable Mark Herman told KPRC that “no one was driving” the fully-electric 2019 Tesla at the time of the crash. It’s not yet clear whether the car had its Autopilot driver assist system activated.