Note that the addendum to the paper was added in March 2020, when Peter Daszak and many others directly associated with the Wuhan Institute were working covertly[0] to destroy any rational or scientific debate about the origins of covid. The Lancet letter was published on 7 March 2020.
[0] Daszak and many of the other co-signers to the Lancet letter which "strongly condemned conspiracy theories” declared no conflicts of interest.