Oh, come on, guys - that's absolutely normal.
It would have been not good if she's been invited for a recurring role or one of more important ones for an episode, but a couple of scenes with a few lines is fine. They cast different people - not necessarily actors for these short stints. So, why not her? Haven't you ever brought your kids (if you have any) to work? And if you are lucky and your kid goes on to study in the same area - won't you at least bring his cv to the HR when he's looking for the first work practice? - That's the same.
BTW, I think she was generally okay with her role
- very good in the court scenes, especially the first one - with fear on her face, though not very convincing in the interview with Flack, but not bad for her first try. :thumbsup: