Sha'irullah
رسول الآلهة
I'm not sure that makes that much of a difference. Illiteracy is no reason to fail to notice that people are going just way too far in their supposed religious fervor.
Actually that is not the case. Illiteracy was used as a tool by the Catholics to prevent the poor from reading the Bible in its Latin form. Quakers are one of the few denominations to encourage literacy and education. It is really not until the protestant split to you see literacy being used as a tool to understand Christianity.
The Qur'an is no different since it is an ancient Arabic book that not even many Arabs can read