And considering the 10's of thousands of pounds/dollars of debt students are routinely getting into, and considering how highly fought collage, university and job placements are at the moment, I think she's got every right to be broken. Depending on the exam it has the potential to put back her education, career and earning prospects by years.
Do I think any of this is actually right - well no; but it does seem to be the current reality.
I've actually saw that happen a couple of times back in college (my university was good, but not in a good area,) where the pressure some students faced because they were the first one to go to college/etc. At a young age something like this could have a huge impact on how ones family views them.
And if we're not in such a mood, we might as well recognize that she's more likely to get a wider audience and an acceptable solution by embarrassing both herself and the guilty parties here with a strong display of emotional distress.
If you need to cry or scream or punch something, go do that (punch a punch bag in the gym etc), we'll wait, and then come back and we can talk and be rational together. We all need that sometimes. But don't do it in a meeting or on camera.
It's just emotional incontinence.