For the record you cant barrel role a (FBW) airbus because the flight control software will not allow the aircraft to bank beyond a set limit (around 20 deg i think but dont quote me) so the pilot canlean on that stick as much as he likes the aircraft will not pernmit him to go beyond a safe condition - same in pitch.

 

 

The A320 accident (breguette was it) at the airshow was because the when pilot flew down the runway then attempted to climb out at the end led to the type being much maligned (see WJR for ref). I also held the aircraft responsible at first until looking into it.

 

Th Plane crashed because it was to low and slow it would not allow the pilot to yank the nose up until it had more airspeed  due to the risk of stall.

 

In many quaters it is now considered that the pilot was at fault for his actions.

 

As to the claims against it for load tolerences

 

quote Anyone can build a bridge that stands up - it takes an engineer to build one that just barely stands up. un quote