A Tesla drover might get the impression that the cars "opinion" is better than their own, which could cause them to hesitate before intervening or to allow the car to drive in a way they are uncomfortable with.
The misinformation about the car reaches the level of negligence because even smart people are being duped by this.
Honestly I think some people just dont believe someone could lie so publicly and loudly and often, that it must be something else besides a grift.