Charlie Hebdo can denounce Islamic extremism in a different manner without being so offensive. There is a difference between not kowtowing and deliberate provocation.
They denounce Islamic extremism by doing what they have always done: making goddamn satirical cartoons. That's their business, making cartoons. Whether they mock Islam, Catholicism, the French government or something else. If they stopped making cartoons about Islam-related stuff because some dickheads somewhere in the world could get offended, then it would be plain old censorship. Period.
They can make cartoons about Islam - just don't depict the Prophet. It's not hard.
You really don't get it...