Briefly, Hythlodaeus wonders if this is a good topic, given how upset Hades was about mortals earlier - but at the same time, he often speaks of the Garleans with fondness. Perhaps a reminder of the better side of humanity is what he needs right now.

"You did always seem to prize stubbornness, even when away from me and Azem."

Though it's a quip much like a lot of their remarks to one another, it's also a tacit encouragement to elaborate more on the nature of the people Hades ended up leading.