According to Osho, you’ve grasped it: the point is to be spontaneous. His many methods and even apparent contradictions are only devices—like two palms striking—to produce a single sound: spontaneity. Don’t obsess over choosing among practices; see their synthesis and allow natural, uncontrived response to arise. When confusion drops, spontaneity flowers; that is the understanding he intends.
Yes—don’t worry about picking the “right” method; all teachings just help you relax into being naturally yourself right now.