"I also had this feeling with the other Dardenne's film I've seen, Le fils. I think it has something to do with the overall humanism I feel in these films, a sense that the persons portrayed are more like models and are interchangable, something like with Bresson."

Very much like Bresson. Dardennes' hold him in extremely high regard and rightfully owe much to him for their success. They have done the work to back up such a claim. And so it's disappointing to hear the term "Bressonian models" so casually thrown around nowadays by individuals who don't quite grasp it in conceptual terms.