Because academic research can't be rushed. One of the requirements for an advanced degree is publishing papers, and if coronavirus related can easily bring attention and get the paper published, students would try taking the fast track. This is not good for research in general.

There was a huge debate back in late Jan. early Feb. on Chinese social network about a paper didn't get peer-reviewed spreading all over places with misinformation. Hence the Fudan University post in Chinese was to tighten the publish review, and nothing about delaying the research.

This guardian news only showed the story without context, which is pretty misleading.