Yes, he has intonation problems, but his accomplishments are undeniable. And like many very good musicians, he's a good musician and also has opinions. The thing is, he is both right and wrong. Yes, it's difficult to walk through 100 choruses of F blues and make each chorus different and interesting. He's right about that. Where he's wrong is when he says that jazz bassists are expected to do that. Even in jazz, the only person listening to the bass line closely enough to know the difference is another bass player. I'm a saxophonist too, and I can tell you, the soloist thinks of the rhythm section as pretty much a breathing play-along track. All they care about is a line with the preferred resolution to tension ratio, and good time and sound.