I don't understand the weirdness and negativity surrounding this announcement.
Prady has always been the lead showrunner and it appears that he and Kushell were having creative differences that were making their way into show so ABC made a judgment call.
The show isn't perfect, but it has a lot working for it. Swapping out Kushell (Anger Management, the Simpsons, American Dad) with Newman (How I Met Your Mother, Chuck, Galavant) seems to gel better with the classic Muppets spirit - that underneath the conflict, they're still a family. Even though I didn't see much wrong on screen, I'm focusing on the positive possibilities with this tweak.
There are so many fans needlessly worrying that they're going to completely change the program, but I haven't read that anywhere. All I've read is that there will be some tinkering and a relaunch in the spring.
All I think that will change is that they'll probably add a bit more music, fun and a sense of camaraderie that the show has been missing.
The show's numbers are solid, but they really could be doing better. Maybe they can get some of the audience back with a bit more cheer, music and madness. That's what I'm thinking. The rest will probably remain the same.