It is a bit much. Hermione knows her place - she wouldn't have to be told by DD to leave. However, I can see the reason for having her there.
1) To support Harry -- pushing the motherly imagery further
2) To connect her with Krum - the script has them looking at each other at one point & to also show Krum defending Hermione nobly, pushing the idea that he's a nice boy
3) To spark the flame which is behind Rita's article - the hug prompts her to make snide comments
4) Her prescence could also show how much Hary misses Ron because he'd find her fussing to be tedious. |