Big topic.. although slightly off-topic 🤣
I can relate to the original posting up to a point - Dylan still sounds very energetic on RaRW, as he always has, while ODR is much more polished, produced, finely tuned. Dylan, if you will, is more like a Van Gogh, while MK is more like Dürer or Rembrandt, if that makes any sense.
I guess that's always been one the major differences between the two (which was also the main thing that critics and die-hard Dylan-fans had to say about Infidels, which is imho one of the better records Dylan has ever made!).
But actually I'm not sure if you can actually compare the two in any way, because they're just very different artists with very different personalities, and that shows in their work. Correct me if I'm wrong, but the way I see it is that Dylan (like Randy Newman) has always been "the man with a message", a political poet with a guitar, and he is still in some way the "angry young man" with a drive to change the world, even at 83. MK (like Leonard Cohen), I think, has always been "a musician with something to say", and over the years the focus has shifted more towards the songwriting, the stories. Of course there are messages in his songs, but very often the topics are more at a personal level, interhuman relationships of all sorts. There aren't many openly political songs, even those are often either ironical (like Industrial Disease, Bacon Roll) or they're just observations (like Iron Hand) without actually stating a clear political message.
So, to put it in a nutshell, MK will often just describe the world we live in and our immediate surroundings and leave it up to you to work out what could be changed, while Dylan often has a clear message about big topics.
I'm not sure, maybe it's partly influenced by their backgrounds (American vs. British), the time and circumstances they grew up in, education or just very different personalities and approaches to life.
I agree that Dylan is a master, no doubt about it. But MK has long stopped being an apprentice, he's a master too, but of something slightly different :-)