Earlier quoted context omitted.
Didn't the article cover the scenarios you mentioned? The article said that the lab's normal job was to look for new bat viruses, and that it's pretty hard to get infected from a qtip swabbed over a bats anus stored in a stabilizing solution. The bottom line is that the evidence we have at this time points to nature as the most probable origin, and it's not unusual for it to take many years to figure these things out…
Here's a question: How many times did classic SARS escape from a lab? https://www.researchgate.net/publication/346413716_A_review_...
We know that lab leaks happen. Scary stuff. Even how many lab leaks there are here in the U.S. The paper you link to describes several lab leaks during a period of time while SARS was being widely studied.
Its quite a leap from knowing there are lab leaks to implying that covid, or any other virus, leaked from a lab. There's relevant genetic evidence indicating that the earliest covid-19 cases were 600 miles south of Wuhan [0]. Also it is estimated, based on antibody testing, that there are millions of people every year who get infected with various bat coronaviruses [1].
More/better evidence is needed to prove a lab leak, given that nature does things like this all the time.
[0] https://www.usnews.com/news/best-countries/articles/2020-05-...
[1] https://www.vox.com/2020/4/23/21226484/wuhan-lab-coronavirus...