The Islam issue is difficult. It's still a new religion that basically copies the religion that came before it, which in turn copied the religion that came before that.

Because of this, Islam isn't really comfortable with itself and it hasn't been forced to look at some of the more fundamental aspects of it's text, and it's still in a place where you can't even question one word of the Koran.

You also have the issue, that because Mohammed came along later and there are some accurate versions of his life (intertwined with lies and nonsense), it's even more difficult to encourage people to examine the texts in an academic fashion.

We just happen to live in a time where Islam has short man syndrome, like Christianity and Judaism have before. There are groups that are beginning to challenge these issues from within the religion, and that is a positive step forward. It doesn't matter what comedians do now, as it's irrelevant to Islam. I wouldn't risk my life to make jokes about a paedophile prophet who liked banging a 9yr old, but I'd make jokes about Moses ordering rape.

There shouldn't be a difference, but self preservation is golden.