She has severe anxiety about racing. I could tell this over the last couple of years while watching her interviews. She might be the best in the world, but it doesn't change how she is. I think the over thinking about each race and the pain that comes with it as you approach the start line is a huge issue for her. I assume that is why they are doing low-stress races to get her comfortable and enjoying the sport. Just my prediction. I have dealt with this in the past myself and it can be extremely over whelming.