That's gennerally how it works yes. They can be very, very deadly, but usually they abstain from inflicting permanent harm unless they feel actively threatened (they don't really feel fear, but they understand danger) and have no other way out. Shinecatcher could have killed several of his pursuers if he had used sling bullets instead of acorns, but he did not want to hurt anyone over that was clearly a misunderstanding. He just wanted to play with the pretty crystal after all. Until he realized Caulder had some nifty looking knives. At which point he forgot the crystal ever existed and focused on them instead. Kindir are perceived as harmless nuisances because they almost always abstain from using deadly force and rarely specifically target valuables, just whatever catches their fancy at the moment. Which might be a golden locket worth dozens of gold, or an old rusty bucket. No telling.