What is naïve? OpenAI is not a domain specific company working on some limited application like self driving cars. They are interested in developing general intelligence. Unlike a racing game, GTA has non player characters (agents) that can be manipulated to accomplish goals. But the lessons learned in doing so are not things I would want to generalize or carry forward into future experiments.

E.g. Maybe it learns that pedestrians made braking instruments in a tight turn.