It's hard to say without comparing, but while Mr. Jacobson is one of the most talented new Muppeteers they have, I personally believe he just doesn't completely grasp the character. Now granted, most of that is the writer's fault. It's the same with Steve's Kermit. They look like the originals, they sound like the originals, they even move like the originals, but simply because Jim was Kermit's soul just like Frank is Piggy's; there's just no comparison. Someone once wrote on this forum that Piggy has become a bad parody of herself, and that's really a perfect summarization. Miss Piggy could carry the whole movie, but I agree with Jamie that (now) she's just too much. She's overbearing.
I remember hearing what Dave Golez said about how puppeteers actually don't like having to replace anyone else's characters, and I can see why. I think Eric is basically 75% there as far as Piggy goes, and I blame her over-diva-fication on the recent projects. We really had some off Piggy roles since MCC....
MCC: Played Bob Cratchet's wife... in about 2 short scenes.
MTI: Played a character shoehorned into the film, who didn't exist in the original text (at least as a woman)'
MFS: Basically had diva all over her, trying to upstage the other reporter... and I must add, she was basically looped dialogue from Frank a good chunk of the film, if not the whole film, losing all the wonderful improvisation that character thrives on.
VMX: Diva again, treated like she wasn't as good as she thought she was... but we had some sweet moments between her and Kermit.... quite possible her best post-Jim era performance.
OZ: played 4 different characters, and I feel they all had a different piece of her personality... it of course, focused on her Diva-ish counterpart, the Wicked Witch.
LTS: Very, very brief appearance, acting selfish. The film focused on the 5 characters that actually went to the north pole. Really should have been a 2 hour special.
Plus, I really don't think Eric found the same voice he had for Piggy as he did with Grover, Bert, and Fozzie... and in the case of Grover and Bert, SS is continuously on TV... Muppet projects have been one every so often since he took over the role.