I think it's the case for the most of series coming from European countries, not just on Netflix, but HBO, Amazon, etc. Usually there's a season or too on the national level, and then they're bought by big distributors.
I mean, Netflix in the Anglosphere isn't much different. A sizable chunk of the "Netflix originals" are just licensed (Snowpiercer, The Good Place) or bought after gaining attention (Black Mirror).
I'm happy there is some diversity in which companies are producing these. Watching too many netflix series, they can start to feel a bit too cookie-cutter in how the drama is laid out over an episode or series.
