It is good that teams like Nigeria , Zimbabwe and Namibia are getting attracted towards cricket. And their overall performance is quite strong now compared to the past.
I have been seeing the Nigeria women's team performing well for quite some time now. I do not get a chance to watch these teams live matches but I check the scoreboard regularly. Interesting thing is , the Nigeria women's team has continued their winning streak in their last 5 matches.
Nigeria have won their first two matches in the group stage of the ICC Women's T20 Qualifiers. They will play against zimbabwe women in the last match. If Nigeria players are confident then they have a chance to win. Anyway , Zimbabwe women's team is quite strong as an opponent.
If you ask me, I think Nigeria women, Zimbabwe women and Namibia Women are the top best teams in this World Cup Africa Region Division One Qualifier however all three of the them are places in the same Group A, that is ridiculous. This also makes the group A quite a tough group. In group B Tanzania Women is leading the points table, but I don't know why Kenya Women isn't performing good in this group. Uganda Women from the same group B is a promising one and they have the capability to make upsets, probably in the knockout matches.
It's true that Nigeria might have been performed better than Tanzania but this qualifier only puts two teams on global qualifier and that's Zimbabwe and Namibia. These are the same teams Nigeria lost against. So if it were a league involving 8 teams, Nigeria might still had failed to reach the global qualifier as the top teams would have been Zimbabwe and Namibia.
Africa still don't have a regional tournament and there are plans for Women's Africa T20 cup but it would need more local interest to come into reality.
African teams are still not rated high on global rankings and they'd need more local tournaments to increase their performance in order to demand more spots on global qualifiers or reach higher ranks on world cup itself to open more spots for other teams.