The article at least partially addressed that. The argument isn't that the pronatalists aren't truly in favor of higher birthrates, it's that they're selective

The article at least partially addressed that. The argument isn't that the pronatalists aren't truly in favor of higher birthrates, it's that they're selectively in favor of higher birthrates for certain groups of people and thus support solutions focused on those groups such as expensive fertility technology like artificial wombs while opposing more generally applicable approaches like workplace flexibility. I think the article is on the right track, but it misses also mentioning the conservative politics angle. The right-wing version of pronatalism also includes a pretty obvious implicit, if not entirely explicit, goal to return to the 1960s model of family life where the husband worked while the wife stayed home with the kids. Offering women workplace flexibility and giving them the option to both work and have a family runs counter to that societal vision.