Diablo 3 was has that got to do with anything.
More like reviwers comparing it to the likes of Oblivion...
Guess you do not read to many reviews or PC game magazines, because most reviewers who gave Divinity 2 a low score have mentioned Diablo 3, and how they know it will be worth the wait, thus they have already given their opinion on a game that has not even been released yet. ;-)