Don't give bad guys any ideas. Following your logic ["Have any of us ever heard of a bomb with the lighted image of a “mooninite” on it?"], they will start decorating their bombs with cartoon characters.
Didn't you see FULL METAL JACKET? Remember the plush bunny?
It's game theory, if you treat it as a threat, with 99% probability you look stupid. If you treat it as a joke, with 1% probability, you're dead.
The choice is yours.
Yup! This gives the terrorists a complete "get" placing bombs in the guise of popular cartoon characters. Similar to the Flying Imans event but different since the Imans were purposely creating an issue whereas the Cartoon Network surely knew that the reaction could be as such and after tons of apologies the free ink for their product will have justified the hassle.