Thousands of military drones have been remotely piloted for decades. This news isn't as ground breaking as it might seem. Some of these drones are large: https://en.m.wikipedia.org/wiki/Northrop_Grumman_RQ-4_Global_Hawk
I know a military drone isn't the same as a passenger carrying airplane, but for cargo I think the only reason this isn't already a thing is because drones are military tech and most governments don't want that falling into the wrong hands.
Thousands of military drones have been remotely piloted for decades. This news isn't as ground breaking as it might seem. Some of these drones are large: https://en.m.wikipedia.org/wiki/Northrop_Grumman_RQ-4_Global_Hawk
I know a military drone isn't the same as a passenger carrying airplane, but for cargo I think the only reason this isn't already a thing is because drones are military tech and most governments don't want that falling into the wrong hands.