Coronavirus First, that's article was written by someone from the Brookings Institute which is just establishment shit as usual.
https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)30183-5/fulltext
You don't seem to understand how Chinese internal politics works. It sat on information while it was still an internal issue that wasn't necessarily going to become an international issue. That's from beginning until end of December. At which time there were 40 confirmed infected (41 as of January 2). They shared the genetic code then, which is early (go ask a virologist whether it's normal to do after only 40 confirmed cases).
So no, they did not troll the rest of the world. It's just kindergarten politics to blame the Chinese as a distraction of how shittily the US administration.
It's also funny to see that when it wasn't an issue in the US, right wingers were taking issue with the Chinese lock down and now they didn't do enough. They're damned if they do and damned if they don't. And not a week ago the problem was Europe!
Meanwhile, I think people here have close to zero understanding of virology, epidemiology or the skills and knowledge necessary to begin to manage health issues at these scales so let's all point fingers to the Chinese, because really that's all you can do. Which is probably why Trump does it too.The Chinese are currently helping more to minimise the effects than any other country because the rest that have any money to spare are almost all in lock down.