There they list the actual top 5 for some professions. Having read that, I am inclined to agree with you here.

The top 6 for car salesmen in that graph has literally only one name (Clay) that is in the actual top 5 and even that was only 5th. The top 4 names (Emmett, Luther, Emanuel, Morton) all got replaced with stereotypical white working class guy names.

The top 6 for surgeon in the graph has no female names yet the actual most disproportionately common name for surgeons is 'Vivienne'.