Art can’t do all those fine things you enumerated unless it penetrates our equilibrium, provokes reflection, and provides new insights. That’s what “disturb” means. It doesn’t mean that art has to annoy or upset. It does mean we have to escape the puritan notion that art is a mere entertainment, a gratuitous, decorative indulgence. Art is a spiritual way of truth telling. It lies at the heart of what it means to be a human creature, because the infinite and transcendent God (no mean artist himself) is the ground of all truth and almost entirely mystery whom we know mostly through his work and signs and thus come to know ourselves. Which is the entire purpose of art, isn’t it?
I don’t think that is what disturb means. I don’t think a person must be disturbed to be inspired.