I think buried in your statement is the idea that democracy is inherently better, an end in itself. I strongly dispute this: I think that it's more important to get to the best answer, than to follow the herd, whatever direction it might go in.
In your second link, it notes two problems. First, it says that Crowds tend to work best when there is a correct answer to the question being posed, such as a question about geography or mathematics. I submit that this is quite the opposite of political questions.
But more importantly, it also discusses one of the big problems of "Wisdom of the crowd", although it couches it as an advantage. The effect is enhanced through communication between individuals, as would (and should) be the case in any political question. To this I reply with two words: "witch hunt".
History is replete with examples wherein the common, accepted ideas of society have stood in the way of progress -- I don't think I even need to recite any. And the whole point of the United States is to protect the minority, or even the one, against the will of a strong majority. So I don't think it's wise to strengthen further the crowd-based aspect of our political system.