You know, I have to agree that the trailer isn't as spectacular as it needs be, but it isn't as bad as some people are making it out to be.
Now, in context the fart shoes, I'll meet you half way. To me, Fozzie ALWAYS was associated with Whoopie cushions. Now, it seems to be a case of cuting the movie up for the trailer to make a joke that wasn't present in the movie (Kermit and Fozzie are in completely different rooms, maybe scenes).
The "We Built this City" and the random robot BOTH seem to be from Jason's stock 1980's movie references... and I guess the whole bit about the clean up montage is a reference to something (they used the same song in a clean up montage on The Cleveland show, and let's face it Seth's shows are ALL about 1980's references). Robot? how many awkward robots have there been in 80's movies? I watched Rocky 4 halfway through, and when I saw the robot Rocky bought for Paulie, which took me completely out of the moment, I kinda gave up watching the rest. it seems that these are supposed to be satirical and therefore not to be taken seriously, BUT in the context of a trailer the satire is just too hard to establish. Are they sincere about a musical montage, or are they doing the equivalent of a Family Guy cut scene ironically? Hard to tell not in the context of a movie.
I still think the movie has potential, and it isn't half as bad as the other trailers for films I've seen that I avoided, only to see them later and denounce the trailer for exaggerating stuff that wasn't even in the movie.
I really hope a second, better done one gets made to be released in theaters.