You should care that she was threatened not about the other shit. That was wrong.
Other than that it as far as I can gather, the majority of a university audience as well as a staff member did not want someone speaking on their campus and took a stand to make sure they couldn't be heard. according to your link it was 200 to 1 against her.
I don't agree with threating a woman much less a visitor to our country but she can take can take her crybaby insults and shove em.