Sorry I'm not really following. Yeah Taiwan's treatment is problematic but that's a larger issue with the United Nations as a whole and not something specific to WHO...
Your concerns are valid. The IPCC reports were also heavily criticized for heavy biases in due to pressure from the US (particularly the US military). However, that doesn't mean that the IPCC reports weren't overall an incredibly useful scientific feat
Yes, like the IPCC, WHO is also susceptible to international political pressures, but I really think if you read through their plan you'd find that it's very well-cited and fairly argued.
