I'd extrapolate that by what he said, he was raised that way, and in my own experience, in Classical music, the dogmatic teaching of it can exclude any other possible approach, the reason I refused a scholarship in piano to North Texas State. I know this outlook.
That he's one of the handful of bassists with extraordinary talent is without question. But he was impossible to live with.
We are a forgiving people, and most are a big exponent of the Second Chance. I think JB may find that being approachable and empathetic in sharing his gifts and knowledge will be far more satisfying in his new role as Ebenezer Scrooge after the long night with the three ghosts than the fella that went to sleep 8 hours before.
He may have a lot of bridges to rebuild, but I'm pulling for him.
I once had a lesson with Roy Vogt, Bass Chair at Belmont here in Nashville, and he was wonderful, and made me feel like I was a contemporary of his, not some 10-thumbed hack, and I'm sure I got more from that one lesson with RV than hours with anyone else. These are the kinds of people JB should take his cues from, and I believe he'll be pleasantly surprised they'd love to do it.