If an airplane did not have a human inside the airplane and they only "dialed in" for extraordinary events, then yes I do think we'd call them pilotless.
Anyway Waymo, to my knowledge, doesn't use the terms "driverless" nor "autopilot." They claim that they are creating an artificial driver or that their cars are autonomous. There's something driving the car, it's just not a human driver, ergo it's not "driverless."
The aeronautic equivalent of Waymo is a fully autonomous UAV. A human might be needed to set high-level goals, but all of the actual flying/driving is done by the machine.
Takeoff is probably easier to automate than an emergency landing.
https://newatlas.com/aircraft/airbus-attol-autonomous-airlin... (2020)