How is it a "step down"? Who were they gonna hire that you'd feel was step sideways? Griffin and Rivers were good friend, Griffin is someone she respected and Kathy Griffin has always said Rivers paved the way for comedians like her. It's not about replacing Joan Rivers, but about finding someone who'll be able to provide the humor, and like I said, who will not be afraid to make fun of the celebrities.
"Some people can thrive and bloom living life in a living room, that's perfect for some people of one hundred and five. But I at least gotta try, when I think of all the sights that I gotta see, all the places I gotta play, all the things that I gotta be at"