I don’t understand how natural origin is your “bias” while everyone else is “jumping to conclusions”. There’s a lack of conclusive evidence for either scenario. And politics aside, SARS has leaked before resulting in deaths… no conspiracy required!
The virus is infecting so many people and changes so rapidly that a natural explanation will not be surprising in the least. New variants have been expected. I think people are surprised at how bad the new variants have been, but anyone following the scientific literature wouldn't be taken completely off guard.