And even outside the biological details, without cooperation from the Chinese government and the lab in question it seems any investigation into alternate explanations will be nearly unfalsifiable. From the article:
>But as COVID-19 rampaged across the globe, the Chinese government’s commitment to transparency turned out to be limited. It has refused to share raw data from early patient cases, or participate in any further international efforts to investigate the virus’s origin...And in September 2019, three months before the officially recognized start of the pandemic, the Wuhan Institute of Virology took down its database of some 22,000 virus samples and sequences, refusing to restore it despite international requests.
>But as COVID-19 rampaged across the globe, the Chinese government’s commitment to transparency turned out to be limited. It has refused to share raw data from early patient cases, or participate in any further international efforts to investigate the virus’s origin...And in September 2019, three months before the officially recognized start of the pandemic, the Wuhan Institute of Virology took down its database of some 22,000 virus samples and sequences, refusing to restore it despite international requests.