Wrong. Who says history has to repeat itself ? Because it happened this way does not mean it could not have happened differently. There were some pretty powerful countries in Africa, in south america. They missed their calling but it does not mean they could not have become as strong as lots of European nations if the situation had not evolved otherwise.
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And what i am advocating is not to make tribes as powertfull as nations,at start, far from it, but some measure of clarity regarding the possibilities to develop them. I dont want them to be mere ornements or there is no use in having created them.
I think there's a bit of inadvertent silliness here which kind of exposes why your position isn't worth the time you spent typing it out.
The different groups added in Leviathan (and at other points in time) are not at all the same.
Indigenous Australians, Polynesians in the tropical Pacific, and Māori were totally distinct civilisations with very different structures which each have different relationships to EUIV mechanics. You can't paint them with one brush, and the fact that you are rather demonstrates you don't have the understanding to speak to the subject.
There is no possible way that the various polities of Indigenous Australians, assuming (as EUIV does) that the history of the world proceeds as it actually did until 1444, could have had any other outcome by 1821 than either ongoing isolation or subjugation by an outside power. There is no plausible series of events that could have occurred to produce any other outcome. They could not have become "leaders of Oceania". In 1444 they didn't even have a conception of Oceania. They didn't even have a conception of
Australia. They didn't have even the barest beginning of an understanding of seagoing vessels, centralised governance, logistics, complex-society-scale land use and resource management, population control, monopoly on the use of force, specialisation of labour, institutionalised structures of influence and responsibility or projection of power. They didn't have a population density—they didn't have a population
base—that would enable the centralisation and projection of power.
A few of those things could have been developed in 400-ish years, but not many, not all at once, and not starting from the position that Indigenous Australians were in in 1444. So here is a measure of clarity regarding the possibilities to develop them: there were none. Starting in 2,500 BCE, sure. Starting in 1444? It's a mathematical impossibility. They
are mere ornaments in EUIV, and there was no use in having created them. Once Indigenous Australians are in the game
literally every province with any human occupants whatsoever can be justified as a tag, because even the Inuit of Eiriksfjord are no less advanced and state-like than the Indigenous Australian nations we are representing as tags.
The Polynesian societies are comparable (as are the nomadic tags in the Americas and Siberia, and probably a few in Africa), in particular the tags on the various atolls of east and central Polynesia: Tonga, Fiji, Samoa. While they had a stronger tradition of centralisation and institutionalised structures of power, monopolies on force and projection of authority, they simple didn't have the population or the capability to grow, support or control a population that could have achieved anything meaningful on the EUIV scale in the EUIV time frame. I am
less opposed to their inclusion—it stretches credulity but I have to admit it is plausible, if Paradox had bothered to account for the particular naval tradition of Polynesian peoples—that Fijian war parties might sail their
waka to Samoa and Tonga and establish a maritime power dynamic between the three. It wouldn't last, and EUIV isn't capable of modelling the reasons why, but it's plausible.
Of the contentious additions the only ones I don't think are completely absurd are the Māori iwi which occupy Aotearoa/New Zealand. They had the political culture of the other Polynesian polities
and the scale of population necessary to actually do things on the EUIV scale. The iwi are the only tags in Oceania for whom the EUIV minimum regiment of 1,000 men isn't completely absurd (it's still
pretty absurd, but not
completely). Do I think they should be in the game? No. But they're better justified than the other additions. It's totally possible that a powerful Māori leader could have centralised Aotearoa under his rule in the time period (Te Rauparaha very nearly
did), just like it's possible that Fiji could've sent war parties to conquer Samoa and Tonga. Because Aotearoa is not so far-flung as those tiny islands such a leader might even have maintained control and been able to then send war parties to Fiji or Rekohu—Māori did, within or shortly after the EUIV period. But even that is a pretty contingent and conjectural string of possibilities, and even if they could achieve all that it wouldn't hold together, for reasons EUIV can't model well. So they just shouldn't be in EUIV.
All of the above tags are better modelled as natives in "terra nullius" provinces. I don't believe there is any reasonable argument to the contrary, and every one I've seen people advance is rooted in either a) ignorance or b) ignorances. Some groups of humans in the world in 1444 just didn't have any possible path to political and military power by 1821. It's just reality.
Now with all that being said some joker is probably going to canter in here and make an argument about game design and options for players and meme runs and world conquests and so on, and that's all fine—I'm exclusively arguing that
from an I-like-that-EUIV-makes-an-effort-to-model-historical-forces perspective it makes sense that the various Stone Age-technology tags in EUIV are gimped to the point of borderline unplayability and that I think they should be gimped
much further. If that isn't something you like about EUIV or care about then I'm sure you'd like to see them treated differently, and that's great, but I don't care.