I believe that China's response to the entire situation was quite mature and considerate. As a US citizen raised to believe in the Freedom of Speech - I've come to believe that Freedom of Speech also comes with responsibility, as do liberty and justice.
Islamic law specifically states (ad hoc) publishing images of the Prophet or of God are forbidden - punishable by death. I believe these are aberrations of the Old Testament - which were originally designed to emphasize upon the Jews the importance of NOT building idols of worship (e.g. Aaron's Golden Calf/Bull while Moses was up on "the hill" getting the ten commandments) - I'm a bit out of chronological sync here - as Islam (I believe) was created out of Abraham's child from his handmaiden, Hagar (since his wife Sarah was kinda old and past menopause). That was a bitter story - and may explain the bitter relationship between Jews and Islam.
Anyway - long digression - the bottom line was freedom of speech - like the gokm blogs - should also come with an element of mutual respect, which the HEBDO cartoon lampooned.
I do believe that the assassins however acted illegally (religiously speaking) as they are outside the Islamic faith system AND they are required to be tried in accordance with Islamic law for death-penalty inducing transgressions.
Islam is NOT a lawless religion - but fantasized Islam IS a lawless religion - it is law based on whim. China has some seriously bitter historical experiences with religious wars, cults, and self-proclaimed messiahs.
So China's response, which was somewhat mirrored by the Pope's - was conservative, well-measured, mature, and respects social harmony.
Unfettered, uncontrolled, irresponsible, undisciplined freedom of speech is like some of the recent gokm blogs - which devolve and disintegrate into pedantic, immature name calling and online bullying - and this includes the baiting tactics.
There's nothing wrong with debating various issues - it helps keep us mentally and socially sharp - but name-calling, baiting are immature playground bullying tactics used when logic fails - or neither party can respect the other's opinions and insists on attempting to force an opinion, philosophy, or whatever - which is how wars are incubated.
I love the USA - but it frequently exhibits the foreign policy of a selfish, pedantic bully as sometimes exhibited on these forums.
The current US led policy of economic embargoes on Russia may force a military response - and we know Putin is definitely macho testosterone driven.
The world is currently in a three kingdoms state of politics - the West, Russia, and the rising Islamic Fundamentalist States - with China playing neutral, as all are major trading partners and a global economic instability is bad for China and currently - with the world still trying to emerge from a global recession (caused by unabated US greed, fraud, and a generally criminal lack of self discipline and social responsibility with US government collusion) - what's bad for China will be bad for the world.