The problem in this case (and many others) is that nostalgia is limited to the form, bordering on fetishism, while the utilitarian and economic aspects of the original are brushed aside.
From TFA: "The car had high wheel arches and soft suspension, letting it travel across a ploughed field or rough roads - as legend would have it, without breaking a tray of duck eggs. Its high roof let drivers wear a hat at the wheel. It was easy to drive and simple to repair."
Which of those qualities have been retained in this 2CV revival?