Whether or not humor belongs in music, Frank Zappa doesn't. It is an objective fact that he didn't even want to be making this trash, so why are you listening to it? Oh, you're in on the joke. Cool, cool. That must be fun to say out loud to yourself while listening to Zappa albums since no other living person has ever wanted to participate in that activity with you. Who needs friends when you have some asshole with a mustache, a ton of recording gear and absolutely no respect for you as a listener, right?
Zappa's autobiography should have been titled Being An Asshole To Make Music To Be An Asshole To.