The third tweet demonstrates nothing.
The linked Nature paper in the third tweet [0] may demonstrate why a reservoir animal is more likely than the virus being artificially engineered, but damned if I can understand the reasoning in it. Maybe someone with a biology background or just plain smarter than me can explain it better.
In any case, my original point still stands, without exculpatory evidence for the Wuhan lab or the discovery of a reservoir animal, the lab leak theory should not be dismissed and any attempt to do so is just politics.