How did most iPhone 5 reviews miss this?

The paint on the iPhone 5 seems to be of a very low quality and phones are arriving already scratched and scuffed.

From Pocket-lint's review:

Ditching the glass back and reducing the thickness of the glass panel on the front has affected the design of the metal band around the edge of the iPhone. It is now chamfered and while that looks pretty, we've already noticed that on the black model the edge has started to wear, revealing the shiny silver aluminium metal underneath the "slate" coloured coating and, indeed, we've witnessed it on two separate models, ruling out a fluke manufacturing error.

From Macrumors forum.

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HTC seem to have had a similar problem with their Black One S