Nonetheless there are degrees to this and pushing a set of features designed to automatically generate text that closely mimics what other high-ranking content looks like has an outsize impact on the quality of the "commons": in this case Google or any other index of internet content. As other commentators have pointed out, the current state of AI means that while the style of the text is likely to be in line with other content, the actual content of the text may be either useless or actively wrong.
Given the prevalence of such articles already in search results, it is unlikely that the normal mechanism of human perusal of search results will be an effective quality filter.
It is true that, as I allude to, such articles already exist and in this sense Contentedge is not enabling a novel new harm per se. However, it drastically changes the ease of doing so, and doing the same thing, just at a larger scale and higher efficiency, given sufficiently big values of "larger" and "higher" can have a qualitative impact on the harm rendered.