It does give credence to the Islam is Satanic idea.
The descriptions of the "Virgins" sound a great deal like succubi. Add to that the repeated proclamations of how the jihadists love death more than life and that their "heaven"(Hell?) is basically a 70's deco brothel. Makes you wonder if the "angel" that appeared to Mohammed wasn't named Lucifer.
After thinking of this idea a while back, I did some searching, and it appears many others have had the same idea. Here's a pretty cool story.