I hear you, Olaniyan, and understand you are feeling alienated and demotivated by not receiving a scholarship. Regarding your assertion that the selection criteria are unfair, I think that to agree with it would require you to present an actual argument against one or more of those criteria, and I invite you to do so.
I also invite you to think about what else might be done to support and promote the creation and sharing of free knowledge in Africa, beyond awarding a few more scholarships to Africans. I remind you that the Wikimedia Foundation is eager to support mission-aligned work, including experimentation, through the various grants programs[1], and that there is a wealth of written materials about program design and best practices[2][3][4], for African volunteers motivated to do more programmatic work in Africa.
If you would take me up on this invitation, I would love to hear your thoughts on work in Africa, beyond Wikimania scholarships.
A.