This is pretty clearly an example of individual people being racist, not companies. Traditional taxi drivers are notoriously racist, I'm not surprised their app-summoned alternatives are any different.
Good point. But does it make it easier for racism to happen? If Marriott/Priceline (blindly accepts reservation) is replaced by AirBnB (Chesky's vision), will travel become harder for African Americans?
Whenever there's an article about racism or sexism it's very important to jump in and start posting your opinions without reading any more than the headline.