Three Mitzvot 1: The Group (2)

Sometimes a quick exchange communicates more effectively, and more personally, than an article. Sometimes, just seeing that others share our questions can make us feel more connected. Our posted questions and answers are an opportunity to learn from each other. Keep in mind that each questioner’s situation may be unique, in ways that affect the halachah. Even the tone of a question can affect the tone of an answer.
Question
You say being around more at home is a rationale for women's priority in the three mitzvot according to Rav Hai and Rambam. If that's true, and my husband is a stay-at-home dad, does he get priority lighting candles or separating challa?
I had trouble with two of the sources here, the mishna and the midrash. You definitely made an effort to discuss the issues, but why quote them at all?