When we are in the moment, we can easily forget that the goal is to connect with the other side, collaborate with them, befriend them, and integrate them into our tribe.
When I am in a dialog, my goal is not to "integrate them into my tribe". Yuck. It is to express myself authentically in a skillful way. Whatever connection and conversation emerges is then meaningful.Where the article is advocating kindness as a manipulation tactic to avoid stirring up their partner's defenses, while pursuing a specific perspective change... that is being slimy.