People are funny with that kind of stuff. Like, does it really matter what color the baby's hair, eyes, or skin is? Aren't we just happy to see a beautiful, healthy little boy or girl? I can't imagine she'll be disappointed if the baby has dark hair and it's a boy. She'll just be ecstatic to have a grandchild. I don't think she meant to offend. But yeah, kind of out of order. I have nothing against blond hair but it's so funny to me how that is still the benchmark of beauty for so many people. Ugh.
But also, I'd love for women to stay out of other women's uterus. Period. (pun intended)