He states very calmly that he thinks the role of the bass player is to support what's being played and be as sedate as possible.. So a support role, he's saying.."stay completely in the pocket, no improvisation, no derivation from the music, very stoic phrasing 99% of the time".
I think that the bass is merely a 4 stringed version of the guitar, so it is in circumstances yet another guitar, albeit deeper by nature.
I think that the traditional method is the worst way to think about a bass part, it's counter-productive. Talk about boring someone to death. Next that type of guy will tell you he wants you to play with a 100% clean signal..
lol By the time you take "requests", you'll be near suicidal/inflamed.