WHO's problem is with Ghebreyesus' over the top fawning in the absence of information while his country is a benefactor of China's debt diplomacy, and that Taiwan states they notified WHO of human transmission three weeks prior to their acknowledgement.
It's a pattern with WHO. They make outlandish claims regarding national healthcare comparisons while relying solely on totalitarian governments' input, without corroboration or caveat. Cuba is a good example of this. They have no powers to investigate, compel, or gather intelligence, and are held in esteem not warranted outside of their direct support to poorer nations. I'd blame 1st world nations for catering to WHO's inflated importance.