He was referring to the latent need for better transportation and the way people communicate those needs based on the solutions they already know, as opposed to potential solutions that do not exist yet, such as a car.

People are not good at describing their needs or predicting their future behavior. That does not mean you should be arrogant and ignore what people tell you. This means that you get feedback from them based on observing actual use, and make an effort to understand which are the underlying issues behind a user suggestion.