The only "rock skip" I could find was a TAS Walking in between the spikes, not at all walking through an encounter. Because the game forces you to stop moving during encounters.

I was playing each frame one by one because I was thinking about doing a charity thing soon, and I noticed something that makes no sense for a legitimate run. At 2:54 he walks up to the spikes and one frame later turns around (totally plausable) but he then triggers an encounter. Nothing strange there, until he walks for 5 frames after the encounter (which isn't a thing you can do) during this time his walk animation stops, he walks up to the rock and triggers his dialogue and immediately the fight begins.