As a concept, it's intriguing. In practice, a lot of pieces need to work out just right for this particular instance of the idea to gain traction.
IMHO a few factors need to be met:
* Truthfulness -- granted that many topics have opinions and schisms.
* Reliability (self-healing articles?)
* Ease of use -- I think this needs the most improvement. Search is iffy and navigation unfriendly, IMO.
If nothing else I think the growth of something like a competitor is beneficial on its own. A single "source of truth" is nice, but that's not the age we live in, for better or worse.