The food bit is weird. Is it by any chance an attempt to say
Hey! Éowyn's not like other women, who can all cook excellently; she's into, like, battles and war and stuff!
And I agree with
E&E: Éowyn is practically the life of the party on the road to Helm's Deep. That's not what we want! I always pictured her as more of a discourteous teenager, who wouldn't talk to anyone unless she could moan about how much her life sucked.