If you read the link, you will see it's not a snide remark.
The link is about a woman's right to own her own body and sexuality.
It's about the Catholic church's ideas on contraception and procreation.
"The opposition to abortion within the Catholic Church has to be understood in the broader context of its understanding of women and motherhood. Within the Catholic Church, alongside abortion, contraception is also prohibited and this is interlinked with a belief that motherhood is seen as women’s natural calling. In this line of reasoning, every occasion of heterosexual activity binds women into accepting a child if one is conceived (and whether or not it was consensual).
This understanding of women as naturally mothers who can only have sex if they accept the consequences is no longer routinely used to deny women education or employment, but is still present in the opposition to abortion. It is active in the voting record of Rees-Mogg, who has tried to restrict abortion but also voted in favour of the budget which restricted welfare benefits for families who have more than two children in July 2015. The logical consequence of this is that poorer women should just not have sex. "
Just so you don't have to bother finding that part of the link.
Does Rees-Mogg only care about the abortion side of Catholicism or does he follow their teachings on contraception?