I find it amusing that Bob is still annoying people after 60 years.
In this life there are people you "get" and people you don't. I "get" Bob and love him, crappy singing as all.
It seems for many people though the crappy singing and general half-arsedness really annoys some people, which is probably exactly what he is going for.
for me the event of that tour for me is being there when they played that mythical song "Blind Willie McTell" for the first time, together on stage in Oberhausen. i had always been fascinated by this song so that was like a second coming in itself ...
bob is bob is bob, no greys there, i always loved the man, despite/because of the voice.