While I in general think the reviews system needs to be overhauled in favor of a common critical language as well as a critics association for games, what you're presenting is simply personal opinions and nothing more. IMO, it's totally fair to grade based on high bar that Bungie themselves set for the game, and many reviewers felt that Bungie really failed to deliver on the expectations they had set for Destiny. Even worse, many felt that the things it tried to do, it did worse than its contemporaries in the same field, hence the average scores.
That's a terrible thing to say... I played Bastion and loved the game... it got good scores... based on music? originality and fun... I liked the game...
However when reviewers reviewed the game, they reviewed it as an indie studio developing a game. If they had made Destity, critics scores would have been through the roof. The same thing would probably happen with another less reputable company.... is a game better or worse based on who makes it rather than the game value? If a game has a budget of $20m and another has a budget of $100m, does the game automatically becomes worse and less fun to play?
I don't think a review should take in consideration such things... we aren't doing a financial management analysis. We just need a game review on a game for what it is.
I am a Gamer... I play games and not consoles. I have a PC and Console on which I game... I like games. End of Story!