I don't think so -- the comment in context was not about the "normal distribution of statistics" per se, because when we're talking about Bernoulli trials and the law of large numbers, it clearly is not necessary to assume anything about "default humans".

Rather the article is critiquing the specific use of the normal distribution in assessing population and sub-population statistics. I do think that this critique is kind of nonsensical because the normal distribution assumes nothing of the kind -- a person who is of average height, a "default height" human, is a concept utterly distinct from the concept of a person who is of average weight, a "default weight" human.