Beat me to it. It's really egregious how many disingenuously flawed graphs (one even suggesting that the death rate passed up heart disease!) and faulty mathematical models (dY/dt=kY) there are floating around. This is why education is important because ignorance is placing blind trust in the media (whose narrative of fear helps to glue more eyeballs). There's plenty of indications we've already hit the inflection point:

Nature: Antibody tests suggest that coronavirus infections vastly exceed official counts https://www.nature.com/articles/d41586-020-01095-0

SFGate / Stanford: Study investigates if COVID-19 came to Calif. in fall 2019 https://web.archive.org/web/20200408180013/https://www.sfgat...

From the very article you linked (did you actually read it?): "'At the moment, we think there is no danger of further secondary or tertiary transmission,' Kwon said." We had 8 new cases today, and 6 were from Americans/Europeans entering the country. Given that I lived in Korea for two years and have a fair amount of friends and family there, I am a bit familiar with their situation.

I don't see why it is suspicious. It may have been redacted but there's nothing intrinsically wrong AFAICT.

Howard Markel, M.D., Ph.D. of the University of Michigan Center for the History of Medicine talks about the 2nd hump:

https://www.mdlinx.com/physiciansense/covid-19-is-a-second-p...