College student tripping out in Library

so i saw the video of the young lady that hushed fellow college students at the california college library and i didn't get what was so controversal. librarys are fairly quiet, but the days where you go without hearing a pin drop are in movies, not in reality. i understand the the young lady making her point, however after a while it felt like she was putting on a show and if she was truly bothered then why didn't she seek out the librians who work there or administrators and say have them to tone it down,etc...?? Problem solved as to walking around going at anybody if they so much as breathed or sneezed. its a two sided topic and both sides have valid arguments, but nothing in the video suggested that anything intentional was going down, however some rather not so kind remarks were said and I find that very sad.