IMO, the main problem with the 'uncivilised nation' concept is that it tries to put into a single category a vast range of nations - it would have been better if there had been a continuum from uncivilised to civilised, where the further you get on the continuum, the more civilised abilities you'd get; it's worth noting that most Victorian-era Europeans considered Russia still somewhat uncivilised. I mean, just look at the arguments here in this thread:
"Uncivilised nations should be able to do x and y, because historically Japan did."
"No! Uncivilised nations shouldn't be able to do x and y, because historically Zululand didn't!"
"But... Siam, and Japan, and China..."
"No! Zululand! Bhutan!"
...In short, it is clear that not all uncivilised nations are equally uncivilised (and, for that matter, not all civilised nations are equally civilised). But, of course, to take this into account would require Paradox to make very significant changes in the game, and so it will never happen.
"Uncivilised nations should be able to do x and y, because historically Japan did."
"No! Uncivilised nations shouldn't be able to do x and y, because historically Zululand didn't!"
"But... Siam, and Japan, and China..."
"No! Zululand! Bhutan!"
...In short, it is clear that not all uncivilised nations are equally uncivilised (and, for that matter, not all civilised nations are equally civilised). But, of course, to take this into account would require Paradox to make very significant changes in the game, and so it will never happen.