Postwar NL needed houses, and quick because there was a population boom and the war had destroyed a lot of houses. They made some mistakes and learned hard lessons on what does and what does not constitute a viable way of creating new living areas. Not a lot of the practices of those days remain.
Compared to what I see in the former USSR countries (identical flats in the thousands to the point that there are jokes and movies about how cookie-cutter the results are) there is plenty of variation here and the same goes for the period just after the war. Betondorp may have served as an inspiration but it is only a very small fraction of what was built in those days and much of it still stands and is in fairly good shape.