It's not all of Muslim, though, Ash. Just certain sects of it. There's many that don't believe in killing themselves, either. But, like Christianity, there's different beliefs from various split-off groups.
I mean, heck, Chrisitans? Just look up The Crusades.
Wiccan? Wiccan is a beautiful belief in nature, yet it gets treated like devil worship.
Anyway, I'm not honestly not pissed about this. Then again, I haven't seen the episode. I would say it's safer than being sorry about whatever reprocusions there could have been.