I think a big difference is autopilot on a plane is pretty hazard-free, relatively speaking. There aren't thousands of datapoints per second coming at you from all angles. In the sky you are heading in the correct direction, correct speed, altitude etc. so the variables are much different. Still an amazing feat of technology and programming though, considering when it was implemented!
I think we just have to be careful who controls the AI. There are a lot of nefarious things that people like Gates, Soros and others do with regular people never mind if they have highly advanced AI at their fingertips.