Just saw this video over at the tube:
https://www.youtube.com/watch?v=8TpIaJkLR84 Its a conversation with Shadowheart after siding with the Goblins. Never did so myself, so I never had this convo. Quite interesting for those wondering about Shadowhearts alignment.
I don't see anything redeeming of her in that bit of dialogue at all. If anything, what I take from that video is Larian not providing any dialogue options in which the PC can rebuke her for being a Sharan. Seems like Larian is fixing the path they want the PC to take with her (and perhaps other companions as well).