So many sites simply REFUSE to give anything below 80% if it comes from a Big Name developer, or has paid for advertising, or for whatever other reason they might think of.
Or maybe they just don't hold unreasonable expectations. The reactions, particularly here, seem to usually have more to do with hype than quality.
How many reviews of Deus Ex were almost totally negative, and then they still give it 80%? It's a bigger difference between the two than the number would indicate.
Only negative review of DX1 I recall was Chick's, and he didnt give it an 80%. The critics loved the game, and it was the awards and the reviews that eventually brought a Quake Fed crowd around to it (in time for the Euro market - which, to your credit, we should probably owe that there is a DX2 -at all-). So maybe it insults some people's sensibilities that DX2 wasn't exactly like DX1 with better graphics, but maybe this is more of Ion Storm learning the market rather "copping out". Sometimes highly innovative, detailed and expensive games don't keep a studio alive. Don't believe me? Go ask Black Isle.