Well, awesome. That should mean we can stop pouring billions of dollars into their countries. After all, we’ve been sending them aid for decades to keep them from starving and dying from various diseases and social ills, as well as assist in building their infrastructure. They should be all set now to take their place on the world stage as a modern, educated, progressive first world country. What? Oh, right - all that still hasn’t done the trick. Probably just a few billion more and that’ll do it, right? Pfft.
Those countries are progressing (I’m using the word in its real sense, not as a euphemism for socialism). The civil wars which killed hundreds of thousands of people in various countries, for instance, Liberia and Sierra Leone, have finally ended. It will take time to rebuild from the damage that those wars caused. Children are going to school, vaccination campaigns are reaching more children than ever.
Progress goes slow, because the problems in Africa have been simmering for a LONG time. It did not help that in the 18th and 19th centuries, Africans were seen as free labor to be exploited, or that the natural resources of Africa were seen as belonging to whomever had the means to harvest and ship them (without any compensation to the people who live there). Some of the resource theft still occurs. Africa is also full of diseases of all kinds, which, unfortunately, disable survivors both physically and intellectually.
With each problem being addressed, the Africans come closer to the modern world. It will take a while, though.