I think this is a fair criticism, and I agree that if my boss publicly called me out and insulted me, I'd be pretty discouraged. I might not have made my point

I think this is a fair criticism, and I agree that if my boss publicly called me out and insulted me, I'd be pretty discouraged. I might not have made my point very well, but I certainly didn't mean to imply that being outright caustic was ok, either. I only meant to say that it's still possible offend and arrive at the wrong decision by employing NVC.