I'm not a big fan of Abraxas in general.. too much "hey, look at this dark/gritty/weird thing! oh...and it might have something to do with Eve," too little world building for my tastes.
I disagree with this - I think it's a matter of scope.
With this chronicle, at least, he's perhaps not done anything on a large or epic scale. Through the character of the narrator he has, however, provided subtle detail and nuance on some of what it is to be Gallente. The idea of it all being a face or a mask, for instance - something convenient to wear when times are good and something that's equally convenient to discard at other times. The possibility of what might happen when all the lip service given to the wonders of 'personal liberty' is stripped back, allowing the "infrastructure of daily life" to fall away and the resulting "anger and ennui" that becomes "emblematic" of disenfranchised Gallente in their ghettos and simultaneously a "fertile breeding ground for darkness" that we all suspect exists behind the Federation's glamourous surface appeal.
For me it echoed, at times, some of the themes in - and indeed some of the setting of - Conrad's
Heart of Darkness.
I also thought his characterisation of the provist Caldari was quite good. He did his best to make them more than jack-booted space nazis which is something we've seen many calls for recently and the subtle care he took in doing it was quite precise. They were "ruthlessly efficient", smart enough to understand that once the obvious dissidents were removed simple things like relocating Gallente to make living conditions more tightly localised was not only beneficial to that efficiency it also eventually helped to erode the Gallente ideals and weaken their character. Smart enough too to see what the garden was really about even as the captive Gallente looked past it and - if the narrator was left to his devices - how that could also benefit the efficiency of the Caldari's means of maintaining order.
I think your statement gives Abraxas too little credit. In my opinion, he understands that the building of worlds is achieved not only with the major people and events that are its bricks but also with the mortar that holds them in place which by necessity in EVE should be dark, gritty and weird enough to make us just a little uncomfortable.