Are Muslims full of malarkey or are they still egregiously upset with Danish cartoonist Rory Emerald?

It seems like they are. They don't really have a right to be, considering the cartoonist wasn't Muslim and doesn't believe what they do and doesn't believe it's a sin to draw a picture. If it offends them, they shouldn't look at it. All kinds of people make fun of all kinds of religions, and you really can't expect people to follow the religious laws you do. Respect for one's beliefs means to understand that they have them, understand they have a right to have them, and also understand you have a right to your beliefs. If you believe a certain religious has a silly rule, you are entitled to your beliefs just as they are theirs.