I think the new interactions Shadowheart got are cute and I have a feeling that they are testing out general camp interactivity with them - and Astarion and Shadowheart were second to last in receiving more camp animations. The only ones who are still stuck without any new things to do at this point are Gale and Wyll.
While I didn't have Minthy with me for the evil ending, I have seen it's similar to Astarion's interaction. I wished they would have been given a larger role in Gale's ending because that should have really been right up both their alleys, but I am very glad to at least have some conclusion to the "lets take over the cult" subplot there.
