I am not entirely convinced that the captain did know what he was doing. According to the report he had just under 200 hours on type, so in most European airlines would have been barely out of line training. The co-pilot was also low time but significantly more experienced on the ATR than the captain. They may (if my French is up to scratch) have switched off the GPWS due to poor system knowledge and nuisance warnings earlier rather than simply a desire to bust minimums. It would be interesting to know the captain's previous history and why he switched to the ATR at age sixty. Given the focus on dubious qualifications and Parker pen hours following the Pakistan crash it is reasonable to be sceptical, particularly given how close they got to crashing. The overconfidence displayed however is all the more remarkable give the pilot's low experience and the technical failure, if we are being charitable about why they switched off the GPWS.