I think the author is right in his points, but his choice of phrasing may not be as accurate as possible. Rather than "encouraging self-doubt", I think he is s

I think the author is right in his points, but his choice of phrasing may not be as accurate as possible. Rather than "encouraging self-doubt", I think he is suggesting a culture of introspection, self-awareness, process-oriented thinking, and especially humility. Rather than discouraging "confidence", I think he is discouraging hubris, pride, arrogance, and results-oriented thinking.