Autopilot is not a misleading name actually. You, the press and others just have ingrained a false definition of the word. "An autopilot is a system used to control the trajectory of an aircraft, marine craft or spacecraft without constant manual control by a human operator being required. Autopilots do not replace human operators, but instead they assist them in controlling the vehicle."
If everyone defines Autopilot as an automatic system, shouldn't the definition in the dictionaries be updated? That was a rhetorical question, because it happens all the time.
Besides, Tesla claim that it can drive you unassisted on the highway, so they are very much coining that definition as well.