I'm not continent expert, but that's not Asia. That's Africa. The two countries are very different. One has been ravaged by white people. The last you can do for Africa is properly label it. This design ends up being kind of cool. I like a shirt that is blatantly wrong. It's almost funny, but this looks too much like a believable mistake for it to be cool. I'd like to see Africa with "Antarctica" beneath it. That would be ironic on many levels.
One of my favorite things is to go to the dollar store and buy the surplus shirts they have. They are always misprinted or say something weird on them. There are millions of weird variations of "Keep Calm and [blank] on." Keep Calm and Drink Beer On. Keep Calm and Asia On. You know, stuff like that.