I think for freedom of the press to really mean anything, it has to have the right to offend. If a publication doesn’t have the right to publish something that offends someone, it doesn’t really enjoy freedom of the press. That’s why no matter how offensive an editorial cartoon is, no matter who the target is, be they Christian, Muslim, Jew, atheist, Zoroastrian or whoever, the right to publish them is very important. That goes for political subjects as much as religious, or any other topic that provokes a reaction. It is those testing the limits of freedom at the very edges who ensure the rest of us are still free.
Just my opinion.