A-320 fully automated , VERY difficult to override the computer... computer smart/pilot stupid or so say the “never flown a plane in their life” experts designing the airbus flight controls... when their computer(s) have a failure or WORSE get bad inputs from a sensor (pitot etc.) you have a very real chance of dying in a fireball.
COMPUTER FLYS A-320 into forest when it decided to land and not go around as the pilots intended https://www.youtube.com/watch?v=-cv2ud1339E
Computers can be hacked as well.
As a very experienced Airbus captain, I can assure you that the Airbus is easy to override. Instantly. The automation in an A320 is at a lower level than a B787, and both Boeing and Airbus make manual overrides as simple as move a switch of pushing a button (which in the case of A320 is right by your thumb).
As for your link, every Airbus pilot knows that air show crash was not caused by a failure of the automation, but the foolishness of the man at the controls, depending on an automatic feature he had turned off. All he ever had to do to recover was move the thurst levers like any pilot would.