User blog comment:The Milkman/Everybody Shut Up./@comment-5607673-20120526185241/@comment-5607673-20120529024139

Well, of the there's one thing I know for certain is that it's not 100% canon. Despite the fact that I, personally, believe it fits within the ending quite well, I'm aware that it hasn't been confirmed by BioWare. Therefore, it can't possibly be 100% canon.