Could be, but what if the injury rate sustains itself continuing forward? It could just be an abnormality (which I think is more likely). Occasionally you get spikes certain years and dips in others. In general, I feel that the injuries are climbing across all sports. If anything, the drive to enhance human performance (bigger, faster, stronger) has had a consequential correlation of increase in injury prevalence. That's why I just accept that it's now just the cost of doing business. If you want to be a professional athlete, it's risky, that's why it usually comes with a good health plan and decent pay.