As I explained in my previous post, the Christian article, and book it uses for reference, use a counting method that significantly under measures the divorce rate (as I showed by demonstration). Basically, these "Christians" are lying about the divorce rate, and then these "Christians" lie again when they tell people that the 50% divorce rate is "just unfounded rumours and hearsay".
I haven't checked out her methodology. But I think you should make some allowances for the idea that some people are bad at math.
Any man who marries a feminist is almost certainly going to end up divorced. Women, by nature, want strong men. Feminists, by philosophy, want men to be weak. Either way, a married feminist is not going to be happy with any man, not to mention feminism also has a strong misandric undercurrent.
Not all groups of women initiate divorce at the same rate. You can guess which groups greatly pulls up that statistic.