This is not a discussion about strength sports and injury rates. This is a discussion about olympic weightlifting.
"Weightlifting training and competitions together are much safer than other sports such as football, basketball, soccer, etc (Stone, Muscle)."
Another very in depth report:
From the article in reference to knee injuries:
"The knee is one of the most injured joints in sports.9 One study indicated that the weightlifter is at high risk of patellofemoral osteoarthritis.4 The knee was the second most commonly injured site in our study. Although the knee is a common site of injury in other activities, the occurrence of severe or joint integrity injuries is not common in weightlifting. 1-3 The lower extremities move through a very controlled range of motion in weightlifting when compared with other activities such as football, basketball, or soccer. Also, cutting and turning, the common pathomechanics of many knee injuries, are not characteristic of weightlifting."
Basically the injuries associated with olympic weightlifting are over use injuries, not acute injuries, which just require rest to heal and don't compromise joint integrity.
I am in no way saying that olympic weightlifting is incredibly safe, and you won't get injured. I'm just arguing the statement that it is significantly worse than other sports