User blog comment:Caramellson/Try Honesty?/@comment-4237253-20120913021619/@comment-24174486-20120913092932

The fact that you're told long before the ending that you need to combine the Crucible with the Catalyst makes it painfully obvious that the Catalyst is not a deus ex machina. A deus ex machina is when a solution is suddenly introduced; being told how to resolve the plot and then doing exactly what you were told how to resolve the plot is not a deus ex machina.

Is BioWare "making a lot of mistakes"? They've created numerous highly-successful games. Including Mass Effect 3. The problem isn't with the ending. The problem is with the very small minority that hates the ending because it isn't exactly what they wanted—that's why you have people constantly complaining about "the last five/ten minutes", because if you look beyond those last five/ten minutes, those arguments fall to pieces.

Also, the organics vs. synthetics theme is a major one throughout the Mass Effect series. For example, because it's such a major event in the third game, Rannoch. This is another one of those arguments that are so obviously wrong that I can't think of it as anything other than the person saying it knowingly lying or being completely apathetic about appearing completely ignorant about the series.