The rest of the world was acting with the (false) information that China, and the WHO, were putting out there - including that there was "no evidence of human-to-human" transmission. So perhaps when you say it's "not China's fault", this is technically true in the sense that it's the fault of the rest of us for taking what were obvious lies at face value.
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[0] - https://www.who.int/news-room/detail/08-04-2020-who-timeline...
>By mid-February, it was clear it's going to be a problem for the West.
Which I'm sure is why it took the WHO until March 11th to declare it a Pandemic. This entire timeline reads like a corporate CYA exercise. Which tracks, since it was created yesterday.
Every time the Canadian government was asked why they weren't doing anything more, they would reply that they were following all WHO recommendations and WHO says no border closures.
Of course, it's impossible to tell what would have happened if WHO had recommended border closures but since they didn't, it's all on them.