The narrator’s treatment of Maggie might seem harsh if one has not understood the overall context in which the scene takes place. The novel is about an African-American Mama and her two daughters, Maggie and Dee. The plot surrounds The Quilts which are full of the family heritage. And the Mama wants to give two of the most important Quilts to Maggie while Dee wants to prevent the situation arguing that Maggie would not be careful enough to take care of the Quilts and they would get destroyed.
When the Mama Hugs Maggie and drags her into the room to snatch the Quilts out of Dee’s hands the Narrator values her close family ties with Maggie more than her heritage as defined by Dee Because she is giving more importance to the fact Maggie is her younger daughter than to the importance of the Quilts and their heritage.
So the final answer to this question is: the narrator values her close family ties with Maggie more than her heritage as defined by Dee.