Good ending overall. I think the whole "band breaking up" arc was more than a little rushed though, really wasn't all that necessary if everything was going to get resolved almost instantaneously. Nora meeting each member of the band to try to convince them to return seemed way too similar to The Muppets (2011) as well. On the bright side though, I enjoyed the Statler & Waldorf cameo, and I especially loved the return of the Mayhem bus.
In all, I'd give this an 8/10. The closing moments were a perfect way to cap things off, providing fans with a satisfying conclusion but leaving the door open for a second season of tour-related hijinks. Perfect as both a season finale and a makeshift series finale. Unfortunately, Disney pulled the plug, so it serves as the latter more so.
The Muppets Mayhem was a fascinating show. A rare in-depth look at a cast of characters largely reserved for the occasional line or two of comic relief in traditional Muppet productions. I think the 2015 ABC series really planted the seeds for this one (see: "The Ex-Factor") and deserves credit for creating a launching pad for more band-centric content. While short-lived, it was something unique and full of effort, and I wish it had gotten the opportunity to blossom.