I don't know. The mouth issue wouldn't have been an issue until the tongue was in place so it's very possible that the thickness of the tongue was a mistake too late in production to fix (see: the incredibly undersized Gaffer the Cat from Palisades as a great example).
As for the rim on the eyelids, yeah that's pretty bad. How they chose to allow him to go into production like that I'll never know.
As for the review, it's all subjective. I give Jamie a heck of a lot of credit for a really, really well written and thought out review. Personally, I'd give Animal's likeness a 3 out-of-the-box and maybe a 4 with alterations. I would recommend his purchase to anyone (I truly love him – in a completely non "I want to hump you leg" kinda way), but there a glaring mistakes in his likeness. Animal would almost certainly be one of the hardest Muppets to get right and it's a shame because he is so close that a perfect version could've been made without much more work:
(A) The tongue issue. Cannot close his mouth without removing the tongue.
(B) The lower jaw plate only being the size of his tongue, with no side to side movement. This could have been easily fixed with a wire inside his bottom lip.
(C) The bags under his eyes are way too big.
(D) Nose is too small.
(E) His eyelid being made out of foam so there's no way to close his eyes or keep them completely open (c'mon, Fisher Price got this one right thirty years ago).
(F) Oy, the hair! MR should've figured out a way for him to look decent without alterations by the customer. Even with alterations, his hair will never look quite like the real muppet. My Animal would've greatly benefitted from more feathers on the back of his head.
(G) I firmly believe the upper jaw plate is at severely the wrong angle. It slopes down too much as it moves to the back of his head and should have been a bit closer to a right angle when compared to his eyes. He can look decent from the front but looks way off from the side. I think this and the hair are biggest keys to him not looking quite right.
(H) The lack of the collar.
I'm not too bothered by the two separate eyeballs. Many current pics of Animal show two distinct eyeballs. The pupil focus also isn't perfect, but it's close enough for me. They could have done a much worse job on pupil focus. I would change it, but I'm too afraid I'd mess up something that's pretty good as it is now.
All of this said though, I still dig the **** out of him! I have to say, the fun of having him is getting him to look just the way you think he should. I've never felt like working with him was frustrating, annoying or a waste of time. The MR Kermit, to me, is as close to perfect as it gets – but the MR Animal is a lot more fun!