The only bad thing I can think about, and I sort of suspected this from the trailers, is that Lips isn't in this, not at the meeting or with The Electric Mayhem (well maybe he was in another room). He's been used a fair bit in recent years, and it's been said that Steve Whitmire is now comfortable with giving him a voice, yet since figuring the character out he hasn't gotten any opportunities to let him talk.
Oh yeah, and the lack of Thog. He was rebuilt in 2011, yet his only appearances since have been in the last two movies (I'm sure he'll appear on the show at some point).
So yeah, my only complaints so far is "[insert certain obscure characters here] are not in it" and Denise not really doing much yet (maybe they're still trying to find a personality for her).
I had wondered if the "new Muppet show" mentioned in this pilot was the new show or the show-within-a-show, and while it's still not clear, I feel like they are referring to the real show as opposed to Late Night with Miss Piggy.