well the thing about the article is that it singles out finland as if something special happened there, while similar improvements happened basically everywhere in the first world
I wouldn't dream of saying national healthcare in finland is the same as italy or US, which appears to imply that what really happened is mostly just science marching on and general improvements in wealth.
I don't read the articles focus as being on the reduction in infant mortality, but as a piece about cultural differences in care for infants, by describing one aspect of what Finland does, and where the reduction in infant mortality was mentioned in passing and not much more.
You'll note the title is not "How did Finland reduce its infant mortality rate?" or similar, but "Why Finnish babies sleep in cardboard boxes".
It's a human interest piece more than anything else.
I wouldn't dream of saying national healthcare in finland is the same as italy or US, which appears to imply that what really happened is mostly just science marching on and general improvements in wealth.