Had to stop reading when she said that Osu were descendants of slaves.
Osu were people that became servants to the Oracles to avoid death/slavery.
She butchered the hell out of Igbo history for SJW self-flagellation points.
Igbo discuss our history of slavery all the time it's still a big source of disgrace which is why the Osu are outcasted to this day.
But she conflated the Arochukwu conspiracy with general Igbo traditional religion practices and tradition.
She made the actions of a small group of Igbos a descriptor of all Igbos.
Aro Confederacy - Wikipedia
Long Juju Slave Route of Arochukwu - Wikipedia
For anybody that cares, Arochukwu/the Aro People were to Igbo traditional religion what the Pope/Vatican are to Christianity. When somebody would do commit a crime or do something wrong they would be sent to an Oracle(religious figure) to pass judgement on them.
Punishment included things such as death and exile. But at the same time the businessmen in the area were making money selling off prisoners of war as slaves and when that wasn't enough the Oracle priests started sentencing hella people to "death/exile" but really sold them off to slavers.
Eventually the rumors of the conspiracy started to spread, and along with the British colonizers thinking Igbo traditional religion was savagery with human sacrifice/slavery, the Arochukwu realized that their power was coming to an end.
In a last ditch effort they convinced a significant amount of Igbo people to fight back against the British, but honestly now that we can look at our history in hindsight it seems like the war was less about Igbo sovereignty and more about the Aro trying to preserve their reign over Igboland.
Anglo-Aro War - Wikipedia