And he didn't care much for production techniques. He was known as One-take Zimmy by some of his musician friends for his refusal to do more than one take on his recorded songs.
So while Dylan put out a lot of good songs, he put out a lot of crap as well. Poorly sung, indifferently played crap. Even in concert on his best songs he breezed through many of them in a haphazard, musical way.
I don't know if many people remember in 1976 NBC put on a live Dylan primetime special called "Hard Rain." It was awful. Again Dylan just sped through his songs as if merely playing by the numbers made a good concert. Dylan simply didn't care what people (or his audience) thought about the way he did things. Probably still doesn't.
The sheer magic and brilliance of Dylan’s work has always been from the interpretation of others...many others from Peter, Paul and Mary to JOan Baez, Ian & Sylvia Jimi Hendrix and countless many others. I think the fun is watching his early performances, not his recordings...