Was the root cause of that incident not that the ground crew and the pilot all missed a “remove before flight” cover in their pre-flight routines? I.e. it was

Was the root cause of that incident not that the ground crew and the pilot all missed a “remove before flight” cover in their pre-flight routines? I.e. it was multiple humans making an error in their trained & checklisted pre-flight duty, rather than a failure of the aircraft.