I really wish I hadn't replied to you.
I'm sorry if you feel that way.
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.