Agreed.
I played in a band, on and off, back in the early '80s and occasionally we did, at the behest of singer/guitarist number one, a couple of Dylan numbers. Suddenly, from his normal, soprano voice would come this nasal, caterwauling whine. Jeez, it was excruciating!
A few years later, I saw him doing a solo spot and he'd dropped his range and sounded enjoyable to listen to.
My Dylan torture song is Rainy Day Women 12 and 35