In my opinion, fictional worlds are by their nature unsustainable as they age, as they are not regulated by logic and cause-and-effect, but author temperament (or in some cases, memory) and outside-context needs. This is only exacerbated in cases where they are part of a shared universe or tied to a commercial product. It's easy for a simple world to be "believable", because it not only has purity of focus, but also has plenty of acceptable low detail gaps where things can be fudged over as needed. But more complex ones?
I've seen Eves really old lore material, and to be honest, I don't think it's much more internally consistent or even well written then the stuff that we have today. The only difference is there was less prexisting stuff to manage by it's makers - Less writers who have injected their own interpretations into the setting that have to be reconciled, less sheer bulk of information that has to be checked and considered. Less baggage. In those days, the creators could probably write something cool happening and rather then hitting a bunch of you-can't-do-this walls, where this group can't do such and such because of this group or this plot element.
In fact, it could even be an opportunity to enhance the fiction, by creating detail to support it. For example, if this were happening in Eve Year One and I were working as a writer, and the higher ups said to me, "Hey, make King Khanid part of this tournament thing! He's a cool character!" (and this sort of thing happens as a lot for game writers, as I understand it) and the exact mechanisms of the Empires political structure hadn't been fully defined, I could invent an old law or technicality he could use to get in, or a new character who could support him - Both of which could add to the world. But because all those elements are already laid out now and none of them have a means I could use, the choice is between Deus Ex Machina or bust.
Another way to think of the problem would be as a sort of uncanny valley of written universes. Draw a simple picture of a person, and it can be pleasant to look at even if it's not really perfect. But as you make a more and more advanced depictions, elements that are missing or "off" become more and more apparent and off-putting.
There's a reason reboots happen so often. Maybe it's time for a Crisis On Infinite New Edens?
No, but seriously, I dunno what one can really do about this.