You have the Blades and Greybeards argue in the foyer which is nice, and of course Ulfric arguing with just about everybody, but why isn't Elenwen, the Aldmeri Dominion's ambassador to Skyrim, a woman who's been looking for both members of the Blades sitting across from her, say anything about it? It's not like she can't tell who they are. Delphine's decked out in her armor and both she and Esbern are armed with their Blades Swords. It's more than obvious, so why doesn't she react?
Also, why doesn't Ulfric try to speak to his old masters? He used to live in High Hrothgar, training to become a Greybeard, but left when the Great War erupted. He hasn't seen his teachers in over 30 years, you'd think he'd try to say something to them. I'm also surprised that Arngeir isn't a little harsher with Ulfric than others, considering Ulfric's abandonment of the Way.
I really like Season Unending, and I wish there were more dialogue driven questlines where you could make decisions like this, but it seems like this one really could have gone much deeper into the characters than they were willing to go.

