I'd say that one of the fundamental principles in CEDAW, the UN Convention on the Elimination of All Forms of Discrimination against Women, to which we are a party, states that women should be recognized independently within the family. It's not to say that you don't recognize or understand their contribution to the family, but you should recognize them as an independent entity within the family.
Again, I think measures like income splitting are worrisome because they begin to blur those lines. I believe it's important to recognize the ways in which women work and contribute to their families, but I would strongly advise against our consolidating gendered interests into a generalized family unit as if women don't have a distinct experience within that, or as if they all live in a particular family unit, which is obviously not the case. There are many single-parent families in Canada, and most of them are led by women. Often women are the most acutely vulnerable when they are living in alternative family structures for a variety of reasons, and that needs to be recognized.