Yep, I think a lot of reviewers on deadlines simply did not have the time to dive down into the depths with this game. Which is unfortunate, as it is clearly designed to be something that requires that kind of in-depth attention. It practically begs you to think, to spend time preparing and playing it in order to discover and grow.
The saying that some role playing games are vast, clear and beautiful oceans that are only an inch deep comes to mind. In the case of Dragon's Dogma, the waters are not only deep, but are dark and have hidden dangers, complexity and secrets to be found. But only if you dive down deep beneath the murky surface to find out what is actually there.