The reason given was that the play portrayed an ethnically diverse and politically cohesive Kenya, which contradicted the president’s argument at the time that Kenya was too ethnically divided for multi-partyism.
While President Moi was claiming to care for Kenyans who are too tribal, his government was ironically also suppressing any public display of Kenyans transcending their tribal identities. The government needed to encourage tribalism among Kenyans in order to give itself something to cure.