He's Taking His Chocolate Salty Balls And Going Home

It seems that when South Park was making fun of Christians and Jews, all was good in the world of Isaac Hayes. I guess Scientologists have a hard time with a parody of themselves. It seems Chef will no longer be serving salisbury steak to Cartman and Co. because he feels "There is a place in this world for satire, but there is a time when satire ends and intolerance and bigotry towards religous beliefs of others begins."
Matt Stone commented "we never heard a peep out of Isaac in any way until we did Scientology. He wants a different standard for religions other than his own, and to me, that is where intolerance and bigotry begin"

Maybe Chef would have been better off being consumed by the succubus after all.