Aasimar aren't necessarily good. Tieflings, even those who've escaped from hell, aren't necessarily bad. We've no idea what got her sent to the hells after all, and there's precedent for tieflings running from hell being good. Sure, she doesn't have the brightest manners when meeting her, but given her circumstances, it's reasonable and I got a laugh out of some of her lines. Looking forward to her as a companion.
It's true. But I would like to see a classic good girl as a good girl, at least one. If the choice for a good hero is limited only to Karlach, it will really upset all good paladins, and it won't be interesting to pass for good
Conclusions on the game can be made only for 1 act now, and the only "good" female character does not make me happy at all