The gaming press' opinions on this (and all AAA games) are not to be trusted. They have vested interest in keeping big developers happy, and seeing money come into the industry (from people buying games), because their livelihoods are tied to the health of the industry. All AAA games that don't melt and explode when you the disc in the drive, have their figures massaged by the critics. In dire years as 2014 assuredly was, they take games like DA:I and big them up for simple virtue of not being the same level of disaster as most of the other AAA games of the year.
By the time The Witcher 3 finally comes out, DA:I will have faded so far out of their memory that they'll look at you like you just arrived from Mars if you mention it. Most of the critics scored DA2 favourably. They may not have spoken of it in GOTY terms, but most didn't trash it. But now years after the fact and with the benefit of feeling sure they won't be contradicted, they trash it and make out like they alwasy hated it.
That's just how this corrupt industry works. Critics pander to the developers and publishers to get exclusive interviews and previews etc, and they pander to the prejudices of their readers. They give the score that the developer/publisher, critic himself and the critic's readers can live with. It has to be a score that the critic is comfortable to put his name to (i.e its not full of complete and utter lies that will be attributed to him), that the publisher feels gives them a reasonable chance to meet their profit estimates, and which accords with how the gaming readers feel about the game.
Because if people are waiting with bated breath for a game, and you tell them its rubbish, they'll never forgive you. Most won't believe you, will tell you its your fault for not realizing a game's greatness, call you biased, say you know nothing of 'real' games etc etc etc. And even if the mood later turns on that game, they will never admit the critic was right - they'll still curse him for all manner of imagined wrongs, and insist he's still a fool. Time after time after time, critics have been burned when they dared to give scores that their fans didn't agree on, and they always walk it back.