Earlier quoted context omitted.
I'm not defending WHOs treatment of Taiwan. I think that incident was atrocious. Your link says (about the Dec 31 email): "Public health professionals could discern from this wording that there was a real possibility of human-to-human transmission of the disease. However, because at the time there were as yet no cases of the disease in Taiwan, we could not state directly and conclusively that there had been human-to-…
I apologize if this is presumptuous of me, but I get the impression that you don't live here, haven't followed this topic in much detail and probably haven't read anything at all in local media from that time frame. Here's more background: Dr. Li Wenliang's email warning colleagues about the outbreak was sent on December 30th. Multiple Taiwanese doctors were working in Wuhan at that time. Taiwan's very early and very…
I agree with this entirely. But I don't think there is any evidence that the WHO - or China - thought otherwise.
I'd note that the WHO bulletins from both Jan 5[1] and Jan 12[2] mentioned "Based on the preliminary information from the Chinese investigation team, no evidence of significant human-to-human transmission and no health care worker infections have been reported." (Jan 12, Jan 5 was similar).
Now this turned out to be wrong, but that doesn't indicate a cover-up. As your link from Taiwan said, no one definitively knew.
I'm very aware of the messages (not emails) shared by the doctor. I know he was forced to retract them by the regional government, and later exonerated by the central government. I think the dates here are important - as you mentioned it was Dec 30 he sent them, and by Jan 20 the central government had taken over. I do think the Wuhan regional government did try to minimise news of the outbreak, and I think criticism of that is fair - but needs to be tempered by acknowledgement that the central government acted relatively quickly and didn't try to hide things.
I think it's likely that external pressure from Taiwan, Japan, Korea and elsewhere made it clear to the central government that they needed to intervene.
[1] https://www.who.int/csr/don/05-january-2020-pneumonia-of-unk...
[2] https://www.who.int/csr/don/12-january-2020-novel-coronaviru...