Personally Autopilot has actually made driving safer for me... I think there's likely abuse of the system though that Tesla could work harder to prevent.
They are sending multiple signals that this car can drive itself (going so far as charging people money explicitly for the "self-driving" feature) when it cannot in the slightest do much more than stay straight on an empty highway.
They should be forced to change the name of the self-driving features, I personally think "Backseat Driver" would be more appropriate.
It is literally an autopilot. Just like an autopilot on an airplane, it keeps you stable and in a certain flight corridor. There's virtually no difference except for Tesla's Autopilot's need to deal with curved trajectories.
Well, and it actively avoids collisions with other vehicles (most of the time). Airplane (and boat) autopilots don't do that.
"But you're using the word autopilot wrong!"