It is kinder and less stressful in contrast to the American mule thing. Under a confinement model, pregnant women aren’t forced into the standard of trying to match the ones who can do All The Things in every trimester and who don’t appear to even know what morning sickness is. Instead, every pregnant woman is given the benefit of the doubt and not burdened with additional expectations that she appear in public or do a lot of physical labor.
Other people in the community come to the pregnant woman. The pastor or priest comes to visit, she isn’t expected to waddle into church with a passel of younguns behind her. Other women visit and the expectations for the state of the house are very different, because the time to grow the baby is considered important all by itself.
There has been a lot of historical variation in the confinement model, and it mostly involved waiting until a baby bump was likely for what should be obvious reasons. But there is a tenderness to it and a preservation of women’s space and a women’s sphere that is sorely missing from modern American norms regarding pregnancy.
A broad standard that builds rest and healing into the natural course of pregnancy, labor and the postpartum period seems pretty pro-woman to me.