From the article: "The first rule of riding in Google's self-driving car, says Dmitri Dolgov, is not to compliment Google's self-driving car. (...) I have just announced that so far the trip has been "amazingly smooth." "The car knows," says Dolgov."
I'd say considering remarkably complex work, compliments are absolutely justified. Why shouldn't we compliment a creator of a for a job well done anymore? What's wrong with these people?