After reading the Eurogamer review, I'm not surprised that it was rated as it was rated. In fact, while I won't judge the game before playing it, I suspect that my own views will be similar. I always felt like I was on a leash in the Uncharted games, which was fine as the games continued to add new features; but it seems like this outing might very well be a paint-by-numbers affair: same mechanics, different setting. Making the setpieces bigger merely lends it a Modern Warfare-esque series trajectory, albeit with a better story, more graphical polish, and a more interesting design.
The expected homogeneity of reviews just exemplifies the rash hypocrisy of critics of gaming reviews. We all decry the 8-10 scale, except when it applies to our own personal favorites; then we demand unbiased universal metrics all geared towards the same golden mean of 95+ on Metacritic.