Yates actually ridiculed what you said. You said that a green sickle or whatever was an Islamic sickle. Yates said that DC is Demonic Christian. Same logic, basically.
I'm Catholic christian but I don't believe in god at all. I don't care about religion.
For that reason I would never even think about putting something religious into the Unreal Software logo. You can see in the current logo that the green "sickle" is actually a slime/plasma/power comet flying around the U.