European pilots have little desire to work for companies like Air Asia. The pay is nothing compared to Western airlines. The reason why they work there is to build up their flight hours in order to be hired by a reputable airline such as Air France in his case. The co-pilot had 2000 hours which is approximately 1-3 years of flight experience on a commercial airline depending on the amount of work they do. (Maximum is roughly 1200 hours per year) He's there because the other companies didn't hire him as he wasn't qualified for their positions.
The fact that they made a unnecessary risky decision supports the fact that they were ill trained. The fact that Air Asia workers don't have a union is why they are "not unionized." This was human error and the pilots are to be blamed.