This has nothing to do with the original argument you referenced. Also, scientists are discovering more about Covid every day. What can’t yet be explained is a reflection of the rigorous scientific process being applied. Scientists are careful not to jump to conclusions. It can take years of research to confidently understand a complex virus like Covid.
Public health officials needs to adapt to the latest understanding and work with data and statistics accordingly. It’s extremely boring and un-sexy (i.e., it’s not like scientists in the movies making a sudden breakthrough), which is I suppose why so many jump to conspiracies. We crave clear and spectacular reasons for the things we fear and have no control over.