A huge lever in determining the injury risk for a player is their anticipated workload. As the future is uncertain for most players about to be drafted, this analysis was produced with a hypothetical view of all things being equal and assumed they would all be given equal opportunity to start and touch the ball.
The majority of these players have not suffered severe injuries. That fact is baked into their relevance within the draft. You’re only a high pick if you have exceptional skill and do not have an injury history to match. What gets lost though is that the first year in the NFL is such a jump for most of these players that any weakness is exposed.