I've always disliked this song. I know it's supposed to be satire but I don't believe it works that way. It's a mean and nasty comment about other performers. It gives people a chance to sneer. His comments are not private ones, they are made to be public and as such they give nastiness a legitimate voice in the name of satire. Once a song is out there it takes on a life of its own and the character, along with intentions, of the author become irrelevant.
I understand that in the whole scheme of things this discussion seems trivial but I'm out there singing for people where it's sometimes lonely. Many of us are. There's enough nastiness.

There I've said nasty three times.
Magic three times at the Solstice.
Cheers, Joy