I agree, that Tav should call companions out more often and preferrably with consequences, like you can with Laez'el as a tiefling. You can tell her basically to get lost, because she makes some harsch comments about tieflings.

I haven't really seen Astarions racist scenes, since I mostly kill him or at least send him away nowadays, but yeah, those comments should be addressable.

"We are all stories in the end. Just make it a good one."

Doctor Who