BioWare using this quote isn't libel, or even false advertising, and considering they admittedly
wanted speculations, it follows that they would see the degree of reaction as a good thing, not a bad thing. Especially when there are still delusional jerks like myself who are both analyzing the hell out of the whole series and spouting nonsense about the endings not being a flaming pile of poo.
But back to the matter of this quote being used in a contrary fashion than was intended by the original author. The title of the article the quote is lifted from is "In defense of the 'Mass Effect 3' ending." In the article, the author proceeds to (spoiler alert) lay out his defense of the Mass Effect 3 ending. The conclusion he reaches at the end of the article is twofold:
At its best, it managed to tell a highly personal story of cosmic proportions. At its worst, it was a thrilling, galaxy-hopping action storyline with ambitions that the storytelling and the limitations of game play couldn’t quite achieve.
and
If you made it to the end of Mass Effect 3, then BioWare supplied you with over a hundred hours of videogame amusement, and you experienced a franchise which — in small ways and large — pushed the whole notion of videogame storytelling forward. If you feel like all that time spent with the game was wasted because you didn’t like the last few minutes… Well, no offense, but your perspective on art and the human experience kind of stinks.
Whether or not you agree with the opinion of the article's author (or think he's delusional or being paid off or whatever), he obviously supports BioWare's choice to make the ending as they did. If he wants to write a follow-up article retconning everything he said in this one, and BioWare wants to quote
that article to try and sell their product,
then they would be taking the quote out of context.