I agree with you, the issue is that the technocratic powers from those cities I mentioned (I for myself live in Bucharest) will most definitely use the studies made up using this type of data and will apply them as they are, using “the Germans/Swiss/Dutch are doing it so we should, too” as their main reasoning. By the time someone comes in and says that most probably the situations between Bucharest and Amsterdam (to give a random example) are very different it is too late, the measures have already been taken.

If the US is any indication it will be worse than that. There are all sorts of topics in which "what works in Europe" factors into the discourse yet despite the topic being something on which most of the world has kept good records on for 50+yr north/central/west Europe is still the only part that is paid any attention to.