I have done you all a disfavor by putting these two documents in the same thread, but what's done is done. I'm going to try to make this clear.
These are NOT the same documents. One is about only COVID:
https://iris.who.int/bitstream/handle/10665/376346/9789240090576-eng.pdf
One mentions COVID, but is about ANY airborne pathogen:
https://iris.who.int/bitstream/handle/10665/376496/9789240089181-eng.pdf
All day every day I see people taking quotes from the second one and talking about how absurd it is to say that about COVID, and every time I look, the document's not actually talking about COVID where they quoted from.
I know this won't stop any of it. It's far from a perfect document and that could be discussed. There's plenty there to disagree with, but, I'd say 90% of the discussion about it that I've seen to date has been uninformed and/or disingenuous.