Click the little panel to the right on your own link.
"Action Video Games
...
Sub-genres
...
Shooter game
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First-person shooter"
And yeah, it is very Deus Ex. Which I don't see as a bad thing. There's one Deus Ex series, there's a million CoD clones. You cannot equate all first person games as if they're the same.
And the unreal engine 3 is a fecking engine. Lost Odyssey uses it. Mass Effect uses it. The new XCOM uses it. That's just a ridiculous reason to ignore a game. You are right of course that it's a massively popular engine for these grey, drab shooters, but there's nothing implicitly wrong with it.
I agree with your sentiments; that's probably why I think your opinion is so frustrating.