Yes the factors you raise the likelihood of a lab leak theory, or they could just be circumstantial. Without more, the fact that pandemics throughout history have a natural origin weighs heavily in favor of our current pandemic having a natural origin.
How you can compare the history of humanity to the last ten years, the time when we really have started such experiments, is beyond understanding.
It's like trying to blame an earthquake on a dance party that happened in proximity to the fault line. Okay, maybe, but are dance parties known to cause earthquakes? Do earth quakes happen absent dance parties? Can a dance party theoretically cause an earthquake? I'm not sure, maybe if it were vigorous enough. But if all you've got proximity and a narrative about how it could have happened, without any other proof, then I'm going to default with what I know about pandemics -- they just happen, and so did Covid. I also don't have any proof and just a narrative, but I am reassured by examples of naturally occurring pandemics in the past, and a dearth of lab-leak caused pandemics. I don't see any reason it couldn't be a lab leak, and could easily be convinced with hard evidence. But again, this thread was about default assumptions absent evidence.
It is also about doing dangerous research in imperfect conditions with no oversight, shady behavior like moving the dataset offline, hiding the testing status of kab members, or how the sister lab changed locations to move right next door to the wet market in fall.
It is also about how sars-cov-2 is unique in being the only beta coronavirus with a furin cleavage site, which allows it to be more infectious. It is also a coincidence to that in 2018 Wuhan was part of a failed grant to collect coronavirus in the wild and put furin cleavage sites on them. Failed grant sure, but everyone who works in academia knows that you start working on a grant for preliminary results even before it is filed. And who knows, maybe China funded this dangerous research.
The only problem in all this is how lab-leak was declared to be a settled conspiracy last year. And the only reason was because an orange idiot vouched for it.
Much more likely that covid was rip-roaring uncontrolled through the Wuhan population well before the first official diagnosis, so it was already unstoppable. The real conspiracy is that China massively fucked up its handling of the outbreak because their government is generally incompetent and they don't want people prying too hard into any of it because it would be highly damaging to its world image for everyone to know just how incompetent they are. The labs have proven to be much better at this than some unelected cabal of autocratic government bureaucrats.