'the evolutionary scapegoat'

The following is based from a discussion in The Book Nook, me & Philip,Theologically, there is one feature of evolution which can be useful. It can be used as a scapegoat for flawed creations. For instance, many people die because of their appendix. So why blame God for putting it there? Blame evolution and God does not have to be guilty of putting things in the wrong place. Anyone with a particluar axe to grind can just point a flawed structure: wrongly-wired retina, lungs in a water mammal, etc. and say that God is evil/unjust because He puts handicaps in His creatures. However if evolution is held accountable for it, then we may retain the image of an all-merciful God.

Islam has no concept of original sin or fall of mankind. Adam & Eve were banished out of paradise, but their sins are forgiven. And conscious humans are ordered to rule the Earth by God's laws. I think that is the main reason of human existence in Islam.