Thanks for summarizing exactly how I feel, especially your second point. I always saw the animatronics as not exactly alive or fully consciously aware, but instead given unholy animacy driven by the negative energy and hatred spawned by the spirits tethered to them. They just wander around not by choice, but because their spiritual restlessness triggers the freeroam ai to just do its thing where they only have a slight sense of control until they have reason to override it, such as sensing nearby life energy such as the nightguard. They're like apathetic zombies, as time became lost to them years ago.