Also, from a technical point of view, as you're standing in front of a microphone all day, it's quite a good idea that I should play a laid back sort of character because if he was too frenetic, I'd be exhausted by lunch!
I think that most people who write about music just want to fill some paper. They're not really interested in getting to the heart of something. Otherwise, they wouldn't write what they write.
Granted, the writers, directors, producers, and that community make a great deal of money. But they might be choosing to do a whole lot of other things for the living they make.