Qoser attracted media attention following her questioning of government officials over the 2019 Yuen Long attack. Chief Executive Carrie Lam and several government officials organised a press conference on 22 July 2020, more than ten hours after the mob attack, to respond to media enquiries. During the press conference, Qoser confronted Lam and Commissioner of Police Stephen Lo over the government's delayed response to the attack. She compared the late government press conference to the one held at 4 am soon after the storming of the Legislative Council Complex on 1 July. She further pressed the government on whether the attack was an act of cooperation between the government, the police, and triad groups. When Lam refused to respond directly, Qoser told her to "answer like a human being" (); Qoser also questioned government officials whether they were able to sleep well at night following the attack. Her sharp questioning of government officials was praised in the media and on Internet forums, with netizens calling her a "reporter with conscience" ().