The main point: The researchers behind the Cell paper began by studying the new virus in ways that do not require growing live virus — like through computer analysis. But after establishing that the virus can probably infect human cells, the researchers performed experiments with the fully infectious virus. They did not conduct these experiments in a BSL-3 or BSL-4 laboratory but in a laboratory described as BSL-2 plus, a designation that is not standardized and not formally recognized by the Centers for Disease Control and Prevention and that we think is insufficient for work with potentially dangerous respiratory viruses.
It seems like they didn’t learn from the past. If they keep this up, we’re pretty much guaranteed to get another pandemic sooner or later.