I don't think their culture aligns with the definitions written in the definitions section:
Women is [a] gender term based on self-identification.
but then immediately after when defining Privilege we get
On average women were paid $0.78 for every $1 a man makes.
Pretty likely that what they mean here is female and male rather than man and woman - the person writing this is probably not that used to talking about women and females differently.
Pretty likely trans women make less than cis women.[1] Pretty unlikely the source data gendered trans people consistently. And pretty likely rounding affected the number more. Under 1% of people are trans.
