I think it is grossly unfair to label this crash ‘pilot error’. The aircraft type was manufactured with a flawed system and the particular airframe suffered a failure on the day which the pilots were unable to overcome. That makes it an aircraft problem, not a pilot problem.
The pilots fought to to resist a plane that was determined to fly itself into the ground, ultimately they lost that fight.
Consider the Sioux City crash where they lost all 3 hydraulic systems. They valiantly battled to fly a crippled aircraft and saved many lives. But would you say the crash was ‘pilot error’ because a theoretical ‘competent crew’ could possibly have managed to land it safely and save all the passengers lives??