He hasn't fully accounted for the motivations of women as to why they don't create more businesses. He shows that female entrepreneurs have the same motivation

He hasn't fully accounted for the motivations of women as to why they don't create more businesses. He shows that female entrepreneurs have the same motivations as male entrepreneurs, but that says nothing about what proportion of females have those particular motivators. A potential explanation, then, is that fewer women have the motivations that cause people to create businesses. Given that men trend more towards risk-taking, it's plausible that more men have entrepreneurial tendencies.