It's clearly done on purpose: the third graph is explained as "Here’s a bar chart of the number of cases by Chinese Province." and it includes Taiwan in the lis

It's clearly done on purpose: the third graph is explained as "Here’s a bar chart of the number of cases by Chinese Province." and it includes Taiwan in the list. So it's not clearly not a mistake. This is of course inacceptable, and people (including myself) are in their right to point it and complain about it.