Goooood point, Kev, I have often wondered about that. Even when I was playing in my measly DT tribute, there was already a staggering amount of "mental turf war" going on. Your band mates aren't going to say anything, especially after years of playing with you. MP was the only one seriously aware of negative feedback, so I think at this point James, and the others, live in a bubble, for better or for worse.
He might think "nobody notices in the heat of the action", and frankly, if DTF is a measure, many actually don't.