Based on my travels to Africa, Middle East and Asia, I think this is highly suspect.
Even suggesting this in Jordan could get you instantly killed.
I know a guy who is a missionary to northern African muslims. He’s been reporting similar results of many, many people becoming Christians.
The average Muslim is often hungry for the truth of Christianity and often sees the failure of Islam.
My experience in Jordan is quite different. Many Christians there. I don’t run around genuflecting on every street corner, but there are a number of Catholic churches.