This is targeted specifically at buying the votes of women. OHIP has enough shortfalls, that 50 million dollars could be utilized in other places.
I really don't know how much sense that makes. Will many people really care about this unless they personally need to use it?
I get the point that in general women seem to be more focused on having kids than men, but I don't think anyone really thinks about this sort of treatment until they are actively trying to have kids and not being successful. I don't think that is a very large portion of the population, and it would be an even smaller portion who's thoughts about this line up with the election cycle.