How can we reasonably expect evidence when journalists were suppressed early on, domestic research into virus origins was censored/state controlled, and site vi

How can we reasonably expect evidence when journalists were suppressed early on, domestic research into virus origins was censored/state controlled, and site visits from external organizations were prevented for an entire year? Clearly all of this is tampering with evidence and highly suspicious, and I feel like the label of “speculation” is misleading or missing context at best. Lab leaks are also not uncommon. There’s a reason why the Obama administration paused gain of function research - with risk of SARS research specifically called out - after numerous incidents (https://obamawhitehouse.archives.gov/blog/2014/10/17/doing-diligence-assess-risks-and-benefits-life-sciences-gain-function-research https://obamawhitehouse.archives.gov/blog/2014/10/17/doing-d...). With SARS (the first one), there were literally multiple lab leaks from the Beijing institute of virology, including one leak tied to deaths (https://www.webmd.com/lung/news/20040423/china-sars-death https://www.webmd.com/lung/news/20040423/china-sars-death).