The FAA is a "tombstone" agency, taking action only when people are killed. The only constructive thing we can do it learn lessons which will reduce such future events. I am not an Airbus pilot so not familiar with their exact procedures and capabilities. Bernt is.
however I have witnessed several procedural errors in the cockpit that could cause the described accident. The most likely would be accidental deletion of the final approach fix if a VNAV descent was used. This would cause premature descent which might not be detected in poor conditions and darkness. At five AM the crew was not likely to be as alert as they could be. The Cargo companies lobbying to exclude them from revised rest requirements is not supported by statistics. The assumption is that some pilots lives are less valuable?
let us hope for more valuable training, not just more,training.
Tom