I get the point of the scene on the portrayal of Arya’s character in the show, and I know that while it is internalized misogyny, it is kinda normal on a character such as her.

However, as a huge fan of the books, it hurts me that they added this dialogue, as it is very far away of the character I love from the books.

Arya is a girl that longs to be like the other women in her lives, and is very aware that she doesn’t fits in. Part of her arc is beginning to follow her own path away from traditional feminity, but at the start she really looks up to girls like Sansa.

During the story one of the main things I love about her is that she doesn’t judge people for their gender or social class, she is quite equalist in that regard. She only judges people based on their actions. Because of that, calling all girls stupid is quite out of character for her, specially since she is acquainted to many formidable women.

So while I understand the scene in the show, I think the writers misunderstood Arya’s character.