"At times of great spiritual anguish for patients and families, I find it completely inappropriate that the hospital that is charged with their care would make promises about God they simply cannot keep"
If God is All-Good and All-Powerful, how do we explain the existence of evil? The problem of evil, especially human suffering, exercised classical Muslim theologians as much it does Western philosophers, theologians and scientists today.
The very act of granting free will would destroy the power do so. Let's see why by looking at the combination of free will, evil, and prayer in the presence of an omniscient god.