Neither the "Wikipedia community " nor the "Nigerian community" is to decide whether they merit a Wikipedia page or not. One does not become a subject of a Wikipedia article by creating a video for WMF. If they had been the subject of multiple independent reliable sources, someone with no conflict of interest will probably write about them and this has nothing to do with the Wikipedia community or the Nigerian community.
This is a commissioned work and accordingly to Nigerian copyright law, the copyright of the work does not belong to the WMF but the creator of the work. Unless there is a contract agreement between Mark Angels and the WMF to release the work under a free license, I doubt they will change the license. I'll like to hear from Zack if such agreement exist.
Regards,
Isaac