You described one of my misgivings better than I could (I made a sibling reply to parent), but I don't agree with this in all cases. Anger is easy to perpetuate blindly, but I think introspective feelings sometimes can die out if they aren't affirmed. Someone struggling with an internal conflict may reject a feeling that seems to resolve the conflict, and not take time to properly deal with the feeling. Affirming the feeling should affirm that the person may have felt and be justified in the feeling, without assuring that the feeling is definitely justified. Maybe taking that road is indeed foolish, but it would be too hasty to dismiss doing so just because it feels foolish.