I want to speak on the whole issue here, not this particular case.
We outlaw and condemn such actions not because we don't want to offend, but because we fear the wrath. This is why the War on Terror has become a colossal failure.
Islam is the only religious entity that gets the special treatment; the freedom from criticism. Other religions get made fun of or insulted and slandered mercilessly. South Park can show Buddha snorting coke but they can't show Mohammad in a bear suit? You can burn a bible and not get arrested, but the Koran is not ok. I dare anybody to go out and buy a bible, burn it, and post it on Youtube. People will yell and scream at you but the police will not come. Nobody will have you cited for hate. You will not go to court, and you will probably not have someone try to kill you.
Freedom of speech doesn't give you the right to pick and choose what you think is acceptable. That's why it's free speech. You have the right to debate it, but not the right to ban it. Otherwise free speech has no meaning. If you don't believe that to be so, do the world a favour and do not vote and do not participate in politics.
What people have to realize is the greater the special treatment a group gets, the more contempt society as a whole will have for that group. I would argue that this drives bigotry. Of course there are a lot of other factors but it contributes. Islam should be treated on the same level as any other religion. We should not put it on a pedestal because we fear their radicals will pull another attack. That's illogical.