It's more fundamental. We certainly believe Mary, being specially chosen in a way that differs from the others you mentioned, holds a special place. Moses disobeyed God and was punished, etc. Mary was bestowed with an ongoing grace prior even to Christ's conception, in a way that is unique to her. She held Him within her womb. But that doesn't get to the heart of why this is a futile discussion.

Abandoning the practice because someone thinks they have a better way of thinking about things just isn't how we work. It's the same with the other saints.

We aren't going to stop changing what we've been doing for the entire recorded history of the Church, any more than we are going to add some new books to Scripture, or take some out. Someone can point out that a particular church father or two thought Mary was vain or sinful, just like someone can say that a particular church father denied the canonicity of Revelation. But the overwhelming opinion of the saints, and the councils we rely on, give us no reason to reconsider either position.