I'm reminded of something William Goldman said in "Adventures in the Screen Trade." While admitting that "nobody knows anything," he also mentioned that one of the sure formulas was "movie stars as you want to see them."
The main problem with the show (other than the poor writing) is that they don't act like the Muppets. In the first two episodes, I think we've seen Kermit for maybe five minutes (and that's generous). I like Scooter well enough, but I don't need him uploading videos and playing emcee instead of the frog. Piggy gets way too much screen time in proportion to her usefulness. Gonzo and Fozzie have been handled well enough, but unless they're doing the short grotesqueries that Hanson did on talk and variety shows in the 50s and 60s, the formula works best with one guest star and the team's attempts to interact with them. I can't believe Disney (Disney!) can't afford to bring in big names who would love to play with the Muppets, but that's the apparent thinking.
Of course, the biggest problem is the missing-in-action Johnny Fiamma.
--Dave Sikula