If I were to take that sentence literally, I would ask for at least 199 other examples, but I imagine that it was just a figure of speech. Nevertheless, if that's only one player complaining (even several times), can we really conclude that ChatGPT cannot play? Is that enough evidence, or is there something else at work?
I suppose indeed one could, if one expected an LLM to be ready to play out of the box, and that would be a fair criticism.
I am in no way trying to judge you; rather, I'm trying to get closer to the truth in that matter, and your input is valuable, as it points out a discrepancy wrt TFA, but it is also subject to caution, since it reports the results of only one chess player (right?). Furthermore, both in the case of TFA and this youtuber, we don't have full access to their whole experiments, so we can't reproduce the results, nor can we try to understand why there is a difference.
I might very well be mistaken though, and I am open to criticisms and corrections, of course.