China's authoritarian government is largely responsible for the severity of the initial outbreak. Their extreme quarantine efforts happened more than a month and a half after the first case was detected, well after it was too late to effectively contain, and only when covering up the situation proved impossible. The government sponsored a 100,000 person banquet with shared plates 3 miles from the epicenter with people who travelled to get there/would travel back while it was arresting doctors and media reporters for talking about the virus. If major sectors in freer countries weren't shut down until weeks after it spreads, it would be an improvement over China.
Here is a succinct summary of the timeline: https://youtu.be/hSIt496d82s?t=62
Last time I checked they were still barring members of the CDC from going into China to help asses the situation. Crucial information such as mortality rate and recovery rate are only being discovered now, as the numbers from China are not accurate.
This virus appears to be something any government would have difficulty containing due to the long incubation period, and some of the false statistics coming out of China are simply a result of a system that has become overwhelmed. Any system in a similar situation as the Chinese now find themselves in would have trouble dealing with this, and I think it may have reached currently levels even with a more transparent system that tried to contain it earlier, but I heavily disagree with your statement. They were extremely irresponsible about early containment during the crucial period when containment had the best chance of working.