To be humble is to take specific actions in anticipation of your own errors. To confess your fallibility and then do nothing about it is not humble; it is boasting of your modesty.

I don't know why EY was taking grief for this. It's a good distinction, well phrased.

On the other side of the pancake, I'd say that intellectual arrogance is often similarly misconstrued.

People often take open disagreement as a sign of intellectual arrogance, while it is a display of respect and humility; showing respect with the honest acknowledgment of your disagreement, and showing humility in affording the other person a chance to defend themselves and prove you wrong. To say nothing is to treat that person's beliefs dismissively, as if they don't matter, and then assume that discussion was futile because they're incapable of understanding the truth, and of course, couldn't possible have anything to teach you.