Based on the audio in the video it seems like they were testing a Tesla FSD update? It sounded like they deliberately drove it in an area that it did not handle

Based on the audio in the video it seems like they were testing a Tesla FSD update? It sounded like they deliberately drove it in an area that it did not handle well and even commented that it was 'better'. It seems like it thinks the lane shifted to the right because it had to reason to do a right turn. Anyone have more insight into what occurred?