I don’t think there is ever going to be any satisfaction on this issue. A lab leak is pretty unlikely, has nonzero probability and will never be falsified or proven. The pandemic has happened. The seeming weirdness from virologists is understandable because they don’t want to be stigmatised/regulated more/defunded/have their labs moved to the dark side of the moon. If you doubt this explanation then you must not hang out with academics very much, their capacity for self-interest is astounding. In fact they see the pandemic as a huge opportunity to get a lot more funding, and wouldn’t be so foolish to derail that by engaging with the lab leak issue in the slightest.