No, it was all evolving knowledge of an ongoing situation involving an unknown virus, with the initial outbreak happening in a not very transparent country. Many people haven't bothered to keep up with the latest information, even with the efforts of local health authorities to bring that information to them.

> We still don't know origin of virus

Yes, and? Would that change anything in our understanding of it and how to combat it? Or do you just need someone to point s finger at and say it's all been their fault? Even in that case we'd still have to combat spread and hospitalisations ( which vaccines help with). In any case, i personally doubt we'll have a conclusive origin story of the virus. It has been more or less ( as much as possible) conclusively confirmed that it came from around a Wuhan wet market, but it'd be pretty much impossible to retrace the steps of random animals there and the event(s) that passed it to the initial humans after so much time has passed and so many have died.