Because this doesn't require putting a transmitter on top of the vehicle. As the article itself mentioned, this sort of GPS spoofing has already been demonstrat

Because this doesn't require putting a transmitter on top of the vehicle. As the article itself mentioned, this sort of GPS spoofing has already been demonstrated to be effective at range. For the purposes of Regulus's tests they didn't need to do it at range, mounting a transmitter on the top of the car was sufficient to demonstrate that an external spoof is possible > The spoofer can easily use an off the shelf high-gain directional antenna to get a range of up to a mile. If they add an amplifier, a range of a few miles is very much possible. It has already been proven that spoofing can even occur across dozens of miles, for example in the Black Sea spoofing attack in June 2017. And literally nobody is saying this is a doomsday. What they are saying is that autonomous cars need to recognize this attack vector and take steps to combat it. The fact that stealing or hijacking vehicles has always been possible doesn't mean we need to deliberately turn a blind eye toward a new and potentially very effective attack against autonomous vehicles.