Right. And IMHO they have no reason to apologize.
Again IMHO, if a Muslim makes a representation of Mohamed, then Muslims have a right to be upset.
If someone that doesn't believe their silly religion does it, so what? If they truly want to integrate with civilized people, they need to learn that civilized people believe they should be free to make any art they feel like.
Today they get upset because non-Muslims print his image.
When do you think they will start getting upset because we don't worship him?
They need to understand that just because THEY don't believe in using his image, doesn't mean the rest of us have to go along.
They really need to get over it (IMHO).