I sympathize with her but wish that kind of sniveling were reserved for the death of one's parent, child, bff, dog... At least pull yourself together off camera first please. It would help your case not to present as an oversized toddler.
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.