My understanding of the author's central thesis is this: the US, despite its world-class virology and disease study labs, regularly has lapses in procedure that regularly lead to situations in which the public might be exposed. Given that this is happening in our own backyard, we might reasonably expect countries of similar status (like China) to experience similar lapses. That reads as reasonable to me, but raises a…
"In 2014, after a series of accidents involving mishandled pathogens at the US Centers for Disease Control and Prevention, the NIH announced that it would stop funding gain-of-function research into certain viruses — including influenza, severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS) — that have the potential to unleash a pandemic or epidemic if they escaped from the lab. Some researchers said the broad ban threatened necessary flu-surveillance and vaccine research."
https://www.nature.com/articles/d41586-020-00210-5
p.s. The US NIH did ultimately stop funding that research locally, but continued funding it in Wuhan. Including the exact type of virus we're dealing with now.