I can see how people are getting upset about it but they seem to think that it was done on purpose. Like it was said in the article
"Culturally, the guys on press in China wouldn't have the faintest idea of who a Sponge Bob was or who a black Sponge Bob was,"
which is true. someone goofed, oops, hehe.
I bet if those people realize what those cards would really be worth in a few years cause of the goof they wouldn't be in as bad a mood.