Mass Effect 3 is a horrible RPG and it isn't just because of the ending fiasco. Those games aren't going to repair 5-6 points just because they fixed a single problem.
Well, I think Mass Effect 3 is a great game and I have every right to think so (and so do many reviewers). And I indeed think that Mass Effect 3 was a typical victim of internet flamebaiting and herd instinct. You can clearly see this by just reading a lot of the negative user reviews at metacritic. There is a difference between serious criticising a game and giving 0/10 points...