“China is responsible for hiding the pandemic!”
No, local officials in Hubei are responsible for hiding the pandemic. If the governer of Georgia hides something, that isn’t a reflection of the US national government, and the same logic applies to China.
I agree with the rest of your points but having governors hide something is intrinsic to the Chinese system. Beijing has a habit of shooting the messenger, leading to local leaders hiding everything from the most trivial to a pandemic.
US governors would behave that way if our system allowed for their replacement and/or prosecution if they were ever to report bad news. Imagine if Trump had the right to replace any governor/mayor who reported a shortage of ventilators and requested federal support.