Would you care to summarize the main claim of that article and outline the evidence (similar to an "abstract" in a scientific article")? I've read a chunk of the article (and several of the linked articles), and despite seeing lots of insinuations I don't really see anything nefarious in the timeline so far. The worst accusation seems to be that Andersen et al received a crash course on coronavirus physiology from a couple of experts who were not included or acknowledged in the final paper; at worst, this is mildly scummy, but there's a good chance it is totally above-board. Other than that, all I see is the suggestion that various people have conflicts of interest due to friend-of-a-friend type relationships ... where these "friend" relationships amount to about 1% of an institution's budget.
So your/their assertion is that the 'lab leak' claims were always a reasonable exploration of the possible origins of COVID-19 (i.e. not a conspiracy theory)?
The assertion is that they believed that at the time internally.
It has never been the favored hypothesis among experts.
Because they thought that it was important that the experts get ahead of the science and take public positions that aren't scientifically supported.
It was not favored because they believe it would damage "science" and relations with China.
Jeremy Farrar, on Februar 2, 2020 (linking to his book):
Jeremy Farrar, on Februar 2, 2020 in a email summarizing a phone conversation to the head of the WHO:
Ralph Baric, on Februar 6, 2020:
While the full post is long, it gives many details about how they collaborated to suppress the lab leak theory.