It got the score it did (though I don't know if I would have given them such a high score) because it is a fully rendered city without load times except for missions or entering your safe house. games like GOW and Bioshock follow a linear path for the most part and have a shitload less stuff to load, and therefore what you see looks a shitload better.
I do think the graphics are a little fucked, but I understand why they are what they are
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