sxb for sure somali peninsula has alot of history. But what the video is saying is because of certain condition it is hard to sustain a civilization not that it never existed.
For example he mention somali lack of agriculture hard to sustain civilization which is true. Or lack of resources which forces us to import and trade to survive which is also true thats why all somali civilization were trading ports.
He also mentions clan which fight between different clans and inter clan to sub sub clans being a problem. Which is also true.
There is nothing he said in the video that show misinfo unless i am missing something. He even mention rich somali trading culture in the video