@dvclama
The fact that Airbus claims it has no responsibility in the crash does not mean that the aircraft had no problem before it crashed.
When an aircraft is designed, there are many mitigating systems that are aimed at helping the crew coping with systems failure, and there appear to have been some failures according to the number of ACARS messages sent.
Now, there has been more failures than the ACARS messages suggest, or their was a mismanagement of the failure messages by the crew.
Indeed, the crew has procedures to follow in case of abnormal situations; these procedures are certified by the authorities suggesting they meet the current safety standards.
The question we have to ask is why couldn't the crew recover from an apparent loss of control? Did they lose situational awareness? Will this lead to new design rules with regards to cockpit design? Could the crew cope with the workload they were faced with?