But how do you explain people who intuitively understand things? Mathematicians, for example, intuitively understand math. Psychologists and experienced authors intuitively understand people. We gain intuition through education and experience, which in turn improve our understanding and sensitivity towards the truth. Expert mathematicians, for example, _can_ have a good sense of whether a theorem is true before they prove it. And in general, people who possess scientific knowledge can intuitively know things.
I do agree with your intent, though — we need to possess humility about the accuracy of our beliefs. The author can’t factually know what other people feel and think without asking them.
But we also owe some deference to wisdom. Being wise is like being an expert darts players: you’re better able to throw darts into the bulls-eye than most people. If we develop a wisdom worth trusting, we should trust it.