That's of course a very America-centric view. You don't think those countries have their own (smaller) Netflix competitors that make it nigh impossible to get the content outside of the country? The budgets of these competitors are also very, very different.
There is also interest, otherwise sites like these wouldn't pop up.
You can find many east european movies on youtube. Try doing the same for Adam Sandler's netflix movie.
You could even watch Memories of Murder on youtube just until Parasite won an oscar. Then they started carring. And this is a relatively new movie of a known director.
Distribution is a problem but saying this isn't blatant piracy is wrong.
There is also interest, otherwise sites like these wouldn't pop up.