Note that Jeanson throws out all pedigree-based mutation rate estimates in favour of data from essentially a single paper, Maretty et al. (2017). In doing so, he’s throwing out all studies that used trios or other long genealogical lines in favour of one that only looked at two generations, fathers and sons. As a result, the data is unable to distinguish de novo germ line mutations from somatic mutations, making it all but worthless for estimating a mutation rate for molecular clocks,
This is Jeanson making exactly the same mistake as he did in the past for mtDNA mutation rate studies, although in those articles he had the honesty to mention this caveat in the text. In this Y chromosome article, the word “somatic” doesn’t even appear once.