What constitutes "insulting Islam and Muhammad"? Is it sort of like insulting the Zionist Project called the "Jewish state of Israel" and being marked anti-Jew for it and punished in some backward places?
I don't like Islam. I don't like Mohammed. I don't consider him a prophet of God but a confused person who duped the willing masses for nationalist and imperialist reasons.
I'm not coercive. I don't hate all Muslims. They don't believe in Christianity, and I don't believe in Islam.
Is that any reason for anyone to be imprisoned? It is not.
People who insist that nobody may speak against a given religion without being punished by fellow human beings are sinning and breaking international secular law at the same time.