It wasn’t lacking evidence at all, want to know why? Because I read that headline at the time and thought it was ridiculous, I couldn’t believe they were saying something so backwards. If you had been paying attention, you knew already:
1. It was spreading rapidly in humans
2. It was a coronavirus and therefore was similar to other coronaviruses
If you were following a precautionary principle, you’d have said “it likely is spreading between humans given we’ve never seen any other form of transmission this rapid in any virus that isn’t, and it’s a coronavirus”.
If you think their “don’t wear masks” lie was ok because it was trying to keep medical workers from a shortage, then, how can you not see this as hypocritical? You can’t think the mask lie was ok, due to abundance of caution, and then a total disregard for caution at a much more crucial early stage as ok.
But again, if you were paying attention, watching the WHO make statements like this was terrifying. Like driving in a car with a drunk driver who is stepping on the gas. Who in their right mind would make such a totally braindead, reckless press release like that. Technically there’s no direct evidence, but there’s a whole lot of reason to be worried it likely is airborne. So the headline should be “it’s highly possible it’s airborne, we are waiting for concrete data, but recommend caution given exponential spread within humans”.
The WHO did things similarly shockingly bad three times or so during the pandemic. I was paying attention to all of them and couldn’t help but think something was up. Something was wrong with the WHO. Not just being conservative, but being totally negligent and backwards time and time again. It really seems they were playing either protection for China, or some sort of interference against a good chunk of the world.
If they had done better, many many lives would have been saved. It was some internal politics that broke them. Any halfway sane person knew it at the time.