We saw such avoidance maneuvers at least several times in the past, but this one is pretty clear.
"My Model 3 saved my family from a crash today. A pickup in my right lane suddenly jumped into my lane and see how this guy reacted. It is amazing. @Tesla @elonmusk .. can't thank enough. @teslaownersSV"
Well, many people are skeptical about driver-assist systems, because the system requires the driver's attention all the time. It's not autonomous. However, the ability to react quickly and evade other cars entering a lane has proven now that automation of driving has the potential to greatly reduce the risk of a crash.
Furthermore, those who experienced their own car avoiding a crash will be probably the biggest supporters of Tesla and Tesla Autopilot for years and years to come.
Here is the video: