This is humor. Not only is it not PC, but it is a lampoon! This is like "Animal House"!
I don't think this rides any kind of line, or is intended to invite controversy at all. The writer is a media humor columnist, and presents this as humorous opinionated satire of certain episodes of Survivor (as well as BB, and other TV shows).
However I do think this writer would be pleased to hear that he is considered controversial, and would probably put out a column lampooning that too.
I mean really! A male writer, writing thru the persona of an aged female Cougar Lush Award-Eligible Film Legend, and Goddess (ala the Tallulah Bankhead reputation)? This doesn't strike you as aiming for your funnybone instead of your intellectual open mindedness?