And that's why the WHO does not make such decisions, as is pointed out very clearly in the article, where the WHO is quoted as follows:
As for "requiring nations to comply with WHO-recommended lockdowns and other emergency measures," that is also nonsense.
Once again, as they have unequivocally stated, they do not have that power and if you want to take COVID as the example, they didn't do that anyway. In fact, if anything, the WHO advised against lockdowns (though again, with no power of compunction).
Here is the WHO spokesman on the topic of lockdowns in October, 2020.
WHO Warning About Covid-19 Coronavirus Lockdowns Is Taken Out Of Context
https://www.forbes.com/sites/brucelee/2020/10/13/who-warning-about-covid-19-coronavirus-lockdowns-is-taken-out-of-context/