I agree with Ben that it is a real stretch to to interpret any of Dylan's comments as a personal attack on Lanois.
Frankly, I like quite a bit of the performance on MT, but I'm not so sure that it is a "masterpiece". This, of course, is entirely subjective and we can argue this until the cows come home.
What is not subjective, in my opinion, is the sound quality, and, as far as I'm concerned (I have the vinyl), that's fair game both within the context of this thread and Dylan's recent comments about sound quality. When someone states that the "production" is masterful, that's simply a load of crap. It's a mediocre to slightly above mediocre sounding recording at best as much as I might like the performance; it doesn't mean I can't appreciate the performance (I've got lots of great music that's not particularly well recorded). But if Bob is going to complain that most recent music sounds crappy, he's going to be fair game when it comes to criticism of the sound quality, particularly if he's producing it himself. I don't see that as an audiophile pissing match, but maybe Ben is just pulling our legs.
There's no doubt in my mind that if Joe Harley at Audioquest had done this record it would have sounded a ton better. If that makes me a Diana Krall or Holly Cole lover, so be it.