Relatively minor changes have huge effect on the content of articles. The linked article also addresses how Wikipedia has banned conservative sources from Wikipedia including Fox News, the Daily Mail, and the New York Post. "In short, and with few exceptions, only globalist, progressive mainstream sources—and sources friendly to globalist progressivism—are permitted."
Every claim in a Wikipedia article must be accompanied with a source. Claims that are only covered by conservative media and not covered at all by mainstream (liberal) media, cannot be referenced as a source in a Wikipedia article. This leads to conservative viewpoints being removed from articles. Which directly causes articles to become biased towards mainstream viewpoints.
Looks like it triggered the flamewar detector. This usually happens if a post has more comments than votes, and the post did not reach the minimum threshold (40 points).