The bigger problem was not the WHO, it's very common for such organizations to be highly dysfunctional and corrupted. It was the slavish adherence to authority (aka boot licking), and piling on, bullying and hatefully attacking anybody who dared to question this corrupt authority. Everyone was getting in on the action, from mega corporations to the average "useful idiot" internet bully.
Unfortunately it's a big problem for some people who put politics above reality to cope with that idea, because WHO is on "their side", for various reasons.