For me it is in general to be able to call companions out more often on obvious BS. I mean, apart from the racism, you should be able to call Astarion out on his obvious delight on seeing others suffer, but then throw a temper tantrum when something happens to him - or his generally snotty attitude. You should be able to press Wyll more about the things, he is obviously hiding - you can do that as a warlock, but you have the same vision as every other class and you should at least be able to ask him again about the demon in the vision. And so many other things with all the other companions. I feel, like you can talk back to Lae'zel the most, but still, there are lines in her dialogues too, that I want to address.
And I find it only fair, if you have the option to call out Astarion for being dismissiv and racist towards small races as a gnome or halfling. If someone would be like that to me in real life, I would want to call them out.
At least you can send some of the companions (if not all - never realyl tested it) away. The game fails to properly notice it though for now. For example: When I send Astarion away or kill him and I tell the Gur about it, the dialogue after with one of the companions will be as if I actively betrayed a companion still in the group.
