I think hassled puts it very well. It's shocking as it breaks through the very strong cultural stereotype of woman as giver of life and nurturer of children.
Women's instinct is supposed to be to save, nurture and protect, to be the soft warm arms that children run to. We are the protectors of innocence, and the world of children, mummy's and childcare is in a sense a micro world, constructed by women to shield little children against the harshness (& masculinity) of the wider world.
Not saying it's true or desirable, but it's the everyday cultural significance of women's role in children's lives.
So it does feel somehow worse, more of a betrayal because from that pedestal its a longer fall.