Yeah I'm confused as to how it could solve these problems too. All the issues listed in the article come from the challenges inherent in moderating a large wiki

Yeah I'm confused as to how it could solve these problems too. All the issues listed in the article come from the challenges inherent in moderating a large wiki used by millions of people, not from centralisation or technology. It doesn't matter how the wiki is structured, these issues are simply part of the concept. It's difficult to fact check a site as popular as Wikipedia, the sheer number of articles means that verifying sources (and author credibility) is almost always going to be an imperfect process.