No, satire doesn't have to be funny, it doesn't have to be timely, it is simply mocking a stance or belief. Here: sat·ire ˈsaˌtī(ə)r/ noun the use of humor, irony, exaggeration, or ridicule to expose and criticize people's stupidity or vices, particularly in the context of contemporary politics and other topical issues. And ad hominem is only a fallacy when it is offered in lieu of a rebuttal.