Understanding the recent incident over Nupur Sharma statement from authentic & religious people in this group

**Gist of the issue**:
Regarding the nupur sharma incident, it is said she just mentioned what was in the Quran. So if that's the case then why there's so much backlash? What was wrong from her part? **Long version:**
As-salamu alaykum, my brothers and sisters. I am not a muslim but would like to understand your religion better. I have recently came across a news which is doing the rounds & was wondering what's the exact cause of the event & what actually happened? And noboday was talking about the triggered event & all are reacting to reactions.
So I checked the video and its conversation. It was a regular news debate & the lady mentioned a sentence which is supposedly said to be written in Quran (I don't know authenticity of this matter). The statement was said in anger & in retaliation of the 1st person derogatory statement. Now I could have quoted it & mentioned that source link but I avoided it just to avoid offending anyone. But at the same time I have seen many people have who doesn't have any idea on what's the actual issue & some haven't seen or heard the original source & the context in which it was given, but are reacting to the news / reports which includes UN representative spokesperson who himself told that he hasn't seen the main source but heard from sources but he condemn such actions and so do I. Now my question to you all is that, is it true that her so called statements are written in Quran. I downloaded an english version of the Quran & tried to find it but couldn't find it in terms of exact statement or words. I maybe wrong but I need to talk & hear from the people that matters. So please give your inputs, so I can understand your religion better. If anyone wants then I can provide source links. Sorry if my post offended anyone but my intent is to get to the bottom of this. Awaiting your response.