Starryophonic: They tell you,what they do. They take them in again, because they are their children. And they do take them in in fact. Two of the children are Gandrels btw., so he has a very personal reason to find Astarion.
Okay, that's what I thought. But my point was more that, in the ascendent route, Tav and AA have no way to know they'd do that. And I think if the Gur did say, "We'd have taken them in if you just allowed us to," they would have either assumed they were lying, or assumed they were hypocrites.
I think Ulma's dialog in the after ascendent scene could have used some fleshing out in any case. She makes some vague allusions to "the better road," but it would have been better IMO if she had stated more concretely what she's mad about. "You let our children die. You ascended." I can make inferences, of course, but I'm just saying it feels underdeveloped.