I disagree. The focus of the article is misinformation. It's literally the first sentence:

The latest model of ChatGPT has begun to cite Elon Musk’s Grokipedia as a source on a wide range of queries, including on Iranian conglomerates and Holocaust deniers, raising concerns about misinformation on the platform.

Yes, Grokipedia is right-wing. It was literally created to alter reality and spread lies that agree with their worldview! But the real problem is it can't be edited with sourced, fact-based information, instead AI generates everything. I think the article did explore the fact that it's one LLM depending on another...