there is no info regarding the lateral mode used for the approach, hence it could have been NAV/VS or HDG/VS, (so either managed lateral/selected vertical, or selected lateral/selected vertical).
as the a/c was GPWS equipped, the NAV function should have been quite/very accurate. there is no mention about any lateral deviation.
On the other hand
and also
Not only the operator does not cares about Airbus recommendations but also it's CAA...
